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S’mores Brownie Bars Deliciously Indulgent Treat

by on July 30, 2025

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Get ready to satisfy your sweet tooth with S’mores Brownie Bars—a dessert that takes classic campfire treats to a whole new level! With layers of rich brownie, gooey marshmallows, and crunchy graham crackers, these bars are both easy to make and simply irresistible. Whether you’re hosting a party or enjoying a cozy night in, this recipe is sure to delight. Join me as we dive into this deliciously indulgent treat that everyone will love!

- 1 cup unsalted butter - 1 ½ cups granulated sugar - 1 cup brown sugar - 4 large eggs - 1 teaspoon vanilla extract - 1 ½ cups all-purpose flour - 1 cup unsweetened cocoa powder - 1 teaspoon baking powder - ½ teaspoon salt - 1 cup mini marshmallows - 1 cup graham cracker crumbs - ½ cup semi-sweet chocolate chips - ½ cup milk chocolate bars Gather these ingredients before you start baking. The butter adds richness. Sugar gives sweetness, while brown sugar adds moisture. Eggs bind everything together. Vanilla adds a warm note. Flour and cocoa powder form the base. Baking powder helps the bars rise. Salt balances the sweetness. Mini marshmallows create that classic s'mores flavor. Graham cracker crumbs add crunch, and the chocolate chips bring extra sweetness. You can use different chocolates if you like. Dark chocolate or white chocolate can work too. The fun is in mixing flavors to suit your taste. Enjoy picking the best ingredients for your S’mores Brownie Bars! {{ingredient_image_1}} 1. Preheating the oven: Start by turning your oven to 350°F (175°C). This temperature helps the brownies bake evenly. 2. Lining the baking dish with parchment paper: Grab a 9x13-inch baking dish. Line the bottom and sides with parchment paper. Let the paper hang over the edges. This will make it easy to lift the brownies out later. 1. Combining wet ingredients: In a large bowl, mix melted butter, granulated sugar, and brown sugar. Whisk until everything is blended. 2. Incorporating dry ingredients: In another bowl, sift together the flour, cocoa powder, baking powder, and salt. Slowly add this mix to the wet ingredients. Stir gently until just combined. 3. Adding graham cracker crumbs and chocolate chips: Fold in graham cracker crumbs and chocolate chips. Make sure they are evenly spread through the batter. 1. Layering the brownie batter: Pour half of the brownie batter into your lined baking dish. Spread it out evenly using a spatula. 2. Adding marshmallows and chocolate: Sprinkle mini marshmallows and chopped milk chocolate bars over the first layer. Add half of the remaining graham cracker crumbs on top. 3. Topping with remaining brownie batter: Pour the rest of the brownie batter over the marshmallows and chocolate. Spread it out gently, covering everything. 1. Baking time and temperature: Place the dish in the oven. Bake for 25-30 minutes. 2. Testing for doneness: To check if they are done, insert a toothpick into the center. It should come out with moist crumbs. Remember, it might not be clean because of the gooey marshmallows. To make your S’mores Brownie Bars even more delicious, add extra marshmallows. You can layer them on top or mix them into the batter. This gives a gooey texture and sweet taste. Try different types of chocolate too. Use dark chocolate for a rich flavor or white chocolate for a sweet twist. Mixing these chocolates can create a fun flavor blend. Prevent overmixing your batter. Mix just until the dry ingredients blend in. Overmixing can make the brownies tough. Cool the brownies properly for the best texture. Let them sit in the pan for about 15 minutes. Then, transfer them to a wire rack. Cooling helps them set and makes cutting easier. Get creative with toppings! Try drizzling caramel sauce or chocolate syrup on top. You can also add crushed graham crackers for crunch. Pair these bars with ice cream. Vanilla or caramel ice cream works great. The cold ice cream balances the warm, gooey brownies perfectly. Pro Tips Use Room Temperature Eggs: Allow your eggs to come to room temperature before mixing. This helps create a smoother batter and improves the overall texture of the brownies. Don’t Overmix: When combining the dry and wet ingredients, mix until just combined. Overmixing can lead to dense brownies instead of the desired fudgy texture. Let Them Cool: Allow the brownies to cool completely in the pan before cutting. This helps them set up properly, making it easier to achieve clean cuts. Customize Toppings: Feel free to experiment with different toppings like peanut butter chips, butterscotch chips, or even a sprinkle of sea salt for added flavor. {{image_2}} You can make these S’mores Brownie Bars gluten-free. Use gluten-free flour instead of all-purpose flour. This swap keeps the bars tasty and chewy. Be sure to check your flour blend. Some blends work better than others for baking. If you want a vegan version, it’s easy! Replace the eggs with flaxseed meal. Mix one tablespoon of flaxseed meal with three tablespoons of water. Let it sit for a few minutes until it thickens. For dairy-free options, use coconut oil instead of butter. Choose dairy-free chocolate chips too. Want to add a twist? You can mix in nuts like walnuts or pecans. They add a nice crunch. You can also add different candies or even peanut butter chips. Try adding a pinch of cinnamon for a warm flavor. The options are endless! To keep your S’mores brownie bars fresh, store them in an airtight container. This helps lock in moisture. You can keep them at room temperature for up to three days. If you want them to last longer, refrigerate them for up to a week. For the best results, layer parchment paper between the bars. This prevents them from sticking together. A glass container works great as it keeps the bars soft while letting them breathe. If you want to save some for later, freezing is a great option. First, cut the bars into pieces. Wrap each piece in plastic wrap. Then, place the wrapped bars in a freezer-safe bag. Make sure to remove as much air as possible. This keeps them from getting freezer burn. You can freeze them for up to three months. When you want to enjoy them again, take the bars out and let them thaw in the fridge overnight. You can also let them sit at room temperature for a couple of hours. Either way, they will taste just as good! You can check if your S’mores Brownie Bars are done by using a toothpick. Insert it into the center of the bars. If it comes out with some moist crumbs, they are ready. The toothpick may not come out clean due to the gooey marshmallows. Keep an eye on the time as you bake them for 25-30 minutes. Yes, you can make S’mores Brownie Bars ahead of time. They taste great even after a day or two. Just let them cool completely, and store them in an airtight container. This way, they remain fresh and tasty. You can also freeze them for longer storage. Just remember to wrap them well. You can get creative with your toppings! Here are some fun ideas: - Whipped cream - Chocolate sauce - Caramel sauce - Extra mini marshmallows - Crushed graham crackers These will add flavor and make your bars look extra special. S’mores Brownie Bars do not need to be refrigerated if you eat them within a few days. Just keep them in a cool place. If you want to keep them longer, then refrigerate them. Just make sure to let them come back to room temperature before serving for the best taste. You now have a complete guide to making S’mores Brownie Bars. We covered the ingredients, step-by-step instructions, and tips to get the best flavor. You learned about variations and smart storage methods. S’mores Brownie Bars offer fun twists for everyone. They are easy to make and perfect for sharing. Enjoy the rich flavors, warm textures, and happy moments they bring. Get creative with toppings and customize them to your taste. These treats will surely be a hit at any gathering!

Why I Love This Recipe

  1. Decadent Flavor: The combination of rich chocolate brownies, gooey marshmallows, and crunchy graham crackers creates a delightful treat that is hard to resist.
  2. Easy to Make: This recipe comes together quickly and requires minimal effort, making it perfect for both beginner bakers and experienced chefs.
  3. Versatile: These S’mores Brownie Bars can be enjoyed warm, at room temperature, or even chilled, allowing you to serve them in various ways.
  4. Perfect for Sharing: With 12-16 bars in one batch, they are ideal for parties, picnics, or any gathering where you want to impress your friends and family.

Ingredients

Required Ingredients

– 1 cup unsalted butter

– 1 ½ cups granulated sugar

– 1 cup brown sugar

– 4 large eggs

– 1 teaspoon vanilla extract

– 1 ½ cups all-purpose flour

– 1 cup unsweetened cocoa powder

– 1 teaspoon baking powder

– ½ teaspoon salt

– 1 cup mini marshmallows

– 1 cup graham cracker crumbs

– ½ cup semi-sweet chocolate chips

– ½ cup milk chocolate bars

Gather these ingredients before you start baking. The butter adds richness. Sugar gives sweetness, while brown sugar adds moisture. Eggs bind everything together. Vanilla adds a warm note.

Flour and cocoa powder form the base. Baking powder helps the bars rise. Salt balances the sweetness. Mini marshmallows create that classic s’mores flavor. Graham cracker crumbs add crunch, and the chocolate chips bring extra sweetness.

You can use different chocolates if you like. Dark chocolate or white chocolate can work too. The fun is in mixing flavors to suit your taste. Enjoy picking the best ingredients for your S’mores Brownie Bars!

Step-by-Step Instructions

Preparing the Baking Dish

1. Preheating the oven: Start by turning your oven to 350°F (175°C). This temperature helps the brownies bake evenly.

2. Lining the baking dish with parchment paper: Grab a 9×13-inch baking dish. Line the bottom and sides with parchment paper. Let the paper hang over the edges. This will make it easy to lift the brownies out later.

Mixing the Batter

1. Combining wet ingredients: In a large bowl, mix melted butter, granulated sugar, and brown sugar. Whisk until everything is blended.

2. Incorporating dry ingredients: In another bowl, sift together the flour, cocoa powder, baking powder, and salt. Slowly add this mix to the wet ingredients. Stir gently until just combined.

3. Adding graham cracker crumbs and chocolate chips: Fold in graham cracker crumbs and chocolate chips. Make sure they are evenly spread through the batter.

Assembling the Brownies

1. Layering the brownie batter: Pour half of the brownie batter into your lined baking dish. Spread it out evenly using a spatula.

2. Adding marshmallows and chocolate: Sprinkle mini marshmallows and chopped milk chocolate bars over the first layer. Add half of the remaining graham cracker crumbs on top.

3. Topping with remaining brownie batter: Pour the rest of the brownie batter over the marshmallows and chocolate. Spread it out gently, covering everything.

Baking

1. Baking time and temperature: Place the dish in the oven. Bake for 25-30 minutes.

2. Testing for doneness: To check if they are done, insert a toothpick into the center. It should come out with moist crumbs. Remember, it might not be clean because of the gooey marshmallows.

Tips & Tricks

Achieving the Perfect S’mores Flavor

To make your S’mores Brownie Bars even more delicious, add extra marshmallows. You can layer them on top or mix them into the batter. This gives a gooey texture and sweet taste.

Try different types of chocolate too. Use dark chocolate for a rich flavor or white chocolate for a sweet twist. Mixing these chocolates can create a fun flavor blend.

Ensuring the Right Consistency

Prevent overmixing your batter. Mix just until the dry ingredients blend in. Overmixing can make the brownies tough.

Cool the brownies properly for the best texture. Let them sit in the pan for about 15 minutes. Then, transfer them to a wire rack. Cooling helps them set and makes cutting easier.

Serving Suggestions

Get creative with toppings! Try drizzling caramel sauce or chocolate syrup on top. You can also add crushed graham crackers for crunch.

Pair these bars with ice cream. Vanilla or caramel ice cream works great. The cold ice cream balances the warm, gooey brownies perfectly.

Pro Tips

  1. Use Room Temperature Eggs: Allow your eggs to come to room temperature before mixing. This helps create a smoother batter and improves the overall texture of the brownies.
  2. Don’t Overmix: When combining the dry and wet ingredients, mix until just combined. Overmixing can lead to dense brownies instead of the desired fudgy texture.
  3. Let Them Cool: Allow the brownies to cool completely in the pan before cutting. This helps them set up properly, making it easier to achieve clean cuts.
  4. Customize Toppings: Feel free to experiment with different toppings like peanut butter chips, butterscotch chips, or even a sprinkle of sea salt for added flavor.

Variations

Gluten-Free Option

You can make these S’mores Brownie Bars gluten-free. Use gluten-free flour instead of all-purpose flour. This swap keeps the bars tasty and chewy. Be sure to check your flour blend. Some blends work better than others for baking.

Vegan Version

If you want a vegan version, it’s easy! Replace the eggs with flaxseed meal. Mix one tablespoon of flaxseed meal with three tablespoons of water. Let it sit for a few minutes until it thickens. For dairy-free options, use coconut oil instead of butter. Choose dairy-free chocolate chips too.

Flavor Customizations

Want to add a twist? You can mix in nuts like walnuts or pecans. They add a nice crunch. You can also add different candies or even peanut butter chips. Try adding a pinch of cinnamon for a warm flavor. The options are endless!

Storage Info

Storage Recommendations

To keep your S’mores brownie bars fresh, store them in an airtight container. This helps lock in moisture. You can keep them at room temperature for up to three days. If you want them to last longer, refrigerate them for up to a week.

For the best results, layer parchment paper between the bars. This prevents them from sticking together. A glass container works great as it keeps the bars soft while letting them breathe.

Freezing Instructions

If you want to save some for later, freezing is a great option. First, cut the bars into pieces. Wrap each piece in plastic wrap. Then, place the wrapped bars in a freezer-safe bag.

Make sure to remove as much air as possible. This keeps them from getting freezer burn. You can freeze them for up to three months.

When you want to enjoy them again, take the bars out and let them thaw in the fridge overnight. You can also let them sit at room temperature for a couple of hours. Either way, they will taste just as good!

FAQs

How do I know when S’mores Brownie Bars are done?

You can check if your S’mores Brownie Bars are done by using a toothpick. Insert it into the center of the bars. If it comes out with some moist crumbs, they are ready. The toothpick may not come out clean due to the gooey marshmallows. Keep an eye on the time as you bake them for 25-30 minutes.

Can I make S’mores Brownie Bars ahead of time?

Yes, you can make S’mores Brownie Bars ahead of time. They taste great even after a day or two. Just let them cool completely, and store them in an airtight container. This way, they remain fresh and tasty. You can also freeze them for longer storage. Just remember to wrap them well.

What are some good toppings or sauces to serve with S’mores Brownie Bars?

You can get creative with your toppings! Here are some fun ideas:

– Whipped cream

– Chocolate sauce

– Caramel sauce

– Extra mini marshmallows

– Crushed graham crackers

These will add flavor and make your bars look extra special.

Do S’mores Brownie Bars need to be refrigerated?

S’mores Brownie Bars do not need to be refrigerated if you eat them within a few days. Just keep them in a cool place. If you want to keep them longer, then refrigerate them. Just make sure to let them come back to room temperature before serving for the best taste.

You now have a complete guide to making S’mores Brownie Bars. We covered the ingredients, step-by-step instructions, and tips to get the best flavor. You learned about variations and smart storage methods. S’mores Brownie Bars offer fun twists for everyone. They are easy to make and perfect for sharing. Enjoy the rich flavors, warm textures, and happy moments they bring. Get creative with toppings and customize them to your taste. These treats will surely be a hit at any gatherin

- 1 cup unsalted butter - 1 ½ cups granulated sugar - 1 cup brown sugar - 4 large eggs - 1 teaspoon vanilla extract - 1 ½ cups all-purpose flour - 1 cup unsweetened cocoa powder - 1 teaspoon baking powder - ½ teaspoon salt - 1 cup mini marshmallows - 1 cup graham cracker crumbs - ½ cup semi-sweet chocolate chips - ½ cup milk chocolate bars Gather these ingredients before you start baking. The butter adds richness. Sugar gives sweetness, while brown sugar adds moisture. Eggs bind everything together. Vanilla adds a warm note. Flour and cocoa powder form the base. Baking powder helps the bars rise. Salt balances the sweetness. Mini marshmallows create that classic s'mores flavor. Graham cracker crumbs add crunch, and the chocolate chips bring extra sweetness. You can use different chocolates if you like. Dark chocolate or white chocolate can work too. The fun is in mixing flavors to suit your taste. Enjoy picking the best ingredients for your S’mores Brownie Bars! {{ingredient_image_1}} 1. Preheating the oven: Start by turning your oven to 350°F (175°C). This temperature helps the brownies bake evenly. 2. Lining the baking dish with parchment paper: Grab a 9x13-inch baking dish. Line the bottom and sides with parchment paper. Let the paper hang over the edges. This will make it easy to lift the brownies out later. 1. Combining wet ingredients: In a large bowl, mix melted butter, granulated sugar, and brown sugar. Whisk until everything is blended. 2. Incorporating dry ingredients: In another bowl, sift together the flour, cocoa powder, baking powder, and salt. Slowly add this mix to the wet ingredients. Stir gently until just combined. 3. Adding graham cracker crumbs and chocolate chips: Fold in graham cracker crumbs and chocolate chips. Make sure they are evenly spread through the batter. 1. Layering the brownie batter: Pour half of the brownie batter into your lined baking dish. Spread it out evenly using a spatula. 2. Adding marshmallows and chocolate: Sprinkle mini marshmallows and chopped milk chocolate bars over the first layer. Add half of the remaining graham cracker crumbs on top. 3. Topping with remaining brownie batter: Pour the rest of the brownie batter over the marshmallows and chocolate. Spread it out gently, covering everything. 1. Baking time and temperature: Place the dish in the oven. Bake for 25-30 minutes. 2. Testing for doneness: To check if they are done, insert a toothpick into the center. It should come out with moist crumbs. Remember, it might not be clean because of the gooey marshmallows. To make your S’mores Brownie Bars even more delicious, add extra marshmallows. You can layer them on top or mix them into the batter. This gives a gooey texture and sweet taste. Try different types of chocolate too. Use dark chocolate for a rich flavor or white chocolate for a sweet twist. Mixing these chocolates can create a fun flavor blend. Prevent overmixing your batter. Mix just until the dry ingredients blend in. Overmixing can make the brownies tough. Cool the brownies properly for the best texture. Let them sit in the pan for about 15 minutes. Then, transfer them to a wire rack. Cooling helps them set and makes cutting easier. Get creative with toppings! Try drizzling caramel sauce or chocolate syrup on top. You can also add crushed graham crackers for crunch. Pair these bars with ice cream. Vanilla or caramel ice cream works great. The cold ice cream balances the warm, gooey brownies perfectly. Pro Tips Use Room Temperature Eggs: Allow your eggs to come to room temperature before mixing. This helps create a smoother batter and improves the overall texture of the brownies. Don’t Overmix: When combining the dry and wet ingredients, mix until just combined. Overmixing can lead to dense brownies instead of the desired fudgy texture. Let Them Cool: Allow the brownies to cool completely in the pan before cutting. This helps them set up properly, making it easier to achieve clean cuts. Customize Toppings: Feel free to experiment with different toppings like peanut butter chips, butterscotch chips, or even a sprinkle of sea salt for added flavor. {{image_2}} You can make these S’mores Brownie Bars gluten-free. Use gluten-free flour instead of all-purpose flour. This swap keeps the bars tasty and chewy. Be sure to check your flour blend. Some blends work better than others for baking. If you want a vegan version, it’s easy! Replace the eggs with flaxseed meal. Mix one tablespoon of flaxseed meal with three tablespoons of water. Let it sit for a few minutes until it thickens. For dairy-free options, use coconut oil instead of butter. Choose dairy-free chocolate chips too. Want to add a twist? You can mix in nuts like walnuts or pecans. They add a nice crunch. You can also add different candies or even peanut butter chips. Try adding a pinch of cinnamon for a warm flavor. The options are endless! To keep your S’mores brownie bars fresh, store them in an airtight container. This helps lock in moisture. You can keep them at room temperature for up to three days. If you want them to last longer, refrigerate them for up to a week. For the best results, layer parchment paper between the bars. This prevents them from sticking together. A glass container works great as it keeps the bars soft while letting them breathe. If you want to save some for later, freezing is a great option. First, cut the bars into pieces. Wrap each piece in plastic wrap. Then, place the wrapped bars in a freezer-safe bag. Make sure to remove as much air as possible. This keeps them from getting freezer burn. You can freeze them for up to three months. When you want to enjoy them again, take the bars out and let them thaw in the fridge overnight. You can also let them sit at room temperature for a couple of hours. Either way, they will taste just as good! You can check if your S’mores Brownie Bars are done by using a toothpick. Insert it into the center of the bars. If it comes out with some moist crumbs, they are ready. The toothpick may not come out clean due to the gooey marshmallows. Keep an eye on the time as you bake them for 25-30 minutes. Yes, you can make S’mores Brownie Bars ahead of time. They taste great even after a day or two. Just let them cool completely, and store them in an airtight container. This way, they remain fresh and tasty. You can also freeze them for longer storage. Just remember to wrap them well. You can get creative with your toppings! Here are some fun ideas: - Whipped cream - Chocolate sauce - Caramel sauce - Extra mini marshmallows - Crushed graham crackers These will add flavor and make your bars look extra special. S’mores Brownie Bars do not need to be refrigerated if you eat them within a few days. Just keep them in a cool place. If you want to keep them longer, then refrigerate them. Just make sure to let them come back to room temperature before serving for the best taste. You now have a complete guide to making S’mores Brownie Bars. We covered the ingredients, step-by-step instructions, and tips to get the best flavor. You learned about variations and smart storage methods. S’mores Brownie Bars offer fun twists for everyone. They are easy to make and perfect for sharing. Enjoy the rich flavors, warm textures, and happy moments they bring. Get creative with toppings and customize them to your taste. These treats will surely be a hit at any gathering!

S’mores Brownie Bars

Delicious brownie bars with a s'mores twist, featuring chocolate, marshmallows, and graham crackers.
Print Recipe Pin Recipe
Prep Time 20 minutes
Cook Time 30 minutes
Total Time 50 minutes
Course Dessert
Cuisine American
Servings 12
Calories 250 kcal

Ingredients
  

  • 1 cup unsalted butter, melted
  • 1.5 cups granulated sugar
  • 1 cup brown sugar, packed
  • 4 large eggs
  • 1 teaspoon vanilla extract
  • 1.5 cups all-purpose flour
  • 1 cup unsweetened cocoa powder
  • 1 teaspoon baking powder
  • 0.5 teaspoon salt
  • 1 cup mini marshmallows
  • 1 cup graham cracker crumbs
  • 0.5 cup semi-sweet chocolate chips
  • 0.5 cup milk chocolate bars, roughly chopped

Instructions
 

  • Preheat your oven to 350°F (175°C) and line a 9x13-inch baking dish with parchment paper, allowing it to hang over the sides.
  • In a large mixing bowl, whisk together melted butter, granulated sugar, and brown sugar until fully combined.
  • Add in the eggs, one at a time, mixing well after each addition. Stir in the vanilla extract until smooth.
  • In another bowl, sift together the flour, cocoa powder, baking powder, and salt. Gradually add this dry mixture to the wet ingredients, mixing until just combined.
  • Fold in the graham cracker crumbs and chocolate chips, ensuring they are evenly distributed throughout the brownie batter.
  • Pour half of the brownie batter into the prepared baking dish, spreading it evenly to cover the bottom.
  • Sprinkle mini marshmallows, chopped milk chocolate bars, and half of the remaining graham cracker crumbs over the batter.
  • Pour the rest of the brownie batter on top and use a spatula to gently spread it out, covering the marshmallows and chocolate.
  • Bake in the preheated oven for 25-30 minutes or until a toothpick inserted into the center comes out with moist crumbs.
  • Once baked, remove from the oven and let cool in the pan for about 15 minutes. Lift the brownies out of the pan using the parchment paper overhang and place them on a wire rack to cool completely.
  • Cut into bars and serve warm or at room temperature, drizzling any remaining melted chocolate on top for extra decadence.

Notes

Drizzle with melted chocolate for extra decadence.
Keyword brownies, chocolate, dessert, s'mores

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