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Funfetti Sugar Cookie Bars Irresistible Treat Recipe

by on October 21, 2025

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Looking for a fun and easy treat? You’ve found it! These Funfetti Sugar Cookie Bars are colorful, sweet, and perfect for any occasion. I’ll guide you through each step, from gathering the right ingredients to achieving that soft, chewy texture. Whether it’s a party, a bake sale, or just a treat for yourself, these cookie bars will delight everyone. Are you ready to bake something irresistible? Let’s dive in!

- 2 ½ cups all-purpose flour - 1 teaspoon baking powder - ½ teaspoon baking soda - ½ teaspoon salt - ¾ cup unsalted butter, softened - 1 cup granulated sugar - ½ cup brown sugar, packed - 2 large eggs - 2 teaspoons vanilla extract - ½ cup rainbow sprinkles (plus extra for topping) - 1 cup royal icing or cream cheese frosting (optional for topping) When choosing flour, use unbleached all-purpose flour. It gives the best texture. Make sure the butter is softened. This helps it mix well with the sugars. Use fresh eggs for the best flavor. For sprinkles, choose colorful ones to make your bars pop. If you want a sweeter treat, go for cream cheese frosting. You can swap all-purpose flour with a gluten-free blend if needed. Use coconut oil or margarine instead of butter for a dairy-free option. For a lower sugar version, try using a sugar substitute. You can also replace eggs with flax eggs for a vegan option. If you don’t have sprinkles, chopped nuts or dried fruit work well too. {{ingredient_image_1}} 1. Start by preheating your oven to 350°F (175°C). 2. Line a 9x13 inch baking pan with parchment paper. Leave some overhang for easy removal. 3. In a medium bowl, whisk together 2 ½ cups of all-purpose flour, 1 teaspoon of baking powder, ½ teaspoon of baking soda, and ½ teaspoon of salt. Set this mixture aside. 4. In a large bowl, beat ¾ cup of softened unsalted butter, 1 cup of granulated sugar, and ½ cup of packed brown sugar. Mix until light and fluffy, about 2-3 minutes. 5. Add 2 large eggs one at a time, mixing well after each addition. Then, add 2 teaspoons of vanilla extract. 6. Gradually add the dry mixture to the wet ingredients. Mix on low speed until just combined. 7. Gently fold in ½ cup of rainbow sprinkles. Ensure they are evenly distributed in the batter. 8. Pour the batter into your prepared baking pan. Spread it evenly using a spatula. 9. Bake for 20-25 minutes. The edges should be lightly golden. A toothpick inserted in the center should come out clean. 10. Let the cookie bars cool in the pan on a wire rack. Use the parchment paper overhang to lift them out easily. 11. Once completely cool, spread 1 cup of royal icing or cream cheese frosting on top if you like. 12. Add extra rainbow sprinkles on top for decoration. 13. Cut into squares or rectangles before serving. For soft, chewy bars, use room temperature butter. It helps the sugar mix well. Beat the butter and sugars until fluffy. This adds air and makes the bars light. Avoid mixing too long after adding flour. You want a soft dough, not a hard one. When folding in sprinkles, do it gently. This keeps the bars from becoming tough. If your bars are dry, you may have overbaked them. Check them at 20 minutes. If they are too crumbly, try adding a little milk next time. Too much flour can cause dryness too, so measure carefully. If they spread too much, your butter may have been too warm. Chill the dough for 30 minutes before baking if needed. These bars taste great on their own. For a fun twist, add frosting on top. Cream cheese frosting pairs well with the sweetness. You can cut them into small squares for parties. Serve with a scoop of ice cream for a yummy dessert. These bars are perfect for birthdays or any celebration. Pro Tips Use Room Temperature Ingredients: Ensuring your butter and eggs are at room temperature helps create a smooth batter and allows for better incorporation of air, resulting in fluffier cookie bars. Don’t Overmix the Batter: Once you add the dry ingredients to the wet, mix just until combined to avoid tough cookie bars. A few flour streaks are okay! Let Them Cool Completely: Allow the cookie bars to cool completely in the pan before frosting. This prevents the frosting from melting and ensures a beautiful finish. Customize Your Sprinkles: Feel free to use themed sprinkles for special occasions, like red and green for Christmas or pastel colors for Easter, to elevate your cookie bars! {{image_2}} You can change the flavor of your Funfetti sugar cookie bars easily. For a twist, try adding almond extract instead of vanilla. This gives your bars a nice nutty taste. You can also mix in different flavored extracts, like lemon or orange, to brighten up the flavor. Another fun idea is to use chocolate chips or peanut butter chips along with the sprinkles. This adds a great texture and taste. If you need to make your cookie bars gluten-free, swap out the all-purpose flour for a gluten-free blend. Make sure it works for baking to keep the texture right. For dairy-free options, use vegan butter instead of unsalted butter. You can also use flax eggs in place of regular eggs. Just mix one tablespoon of ground flaxseed with three tablespoons of water, let it sit for a few minutes, and use it like an egg. Toppings can make your cookie bars even more fun! If you love frosting, use royal icing or cream cheese frosting on top. You can mix in some extra sprinkles for color. Another idea is to drizzle melted chocolate over the bars. Dark, white, or milk chocolate all work well. For a fruity twist, try adding fresh berries on top. They add a nice tartness and look great too. To keep your Funfetti sugar cookie bars fresh, store them in an airtight container. This helps keep them soft and tasty. If you have frosting on top, wait until it's set before covering. You can also wrap the bars in plastic wrap for extra protection. Store them at room temperature for the best taste. You can freeze these cookie bars for later. First, let them cool completely. Then, cut them into squares. Wrap each square in plastic wrap, then place them in a freezer bag. You can freeze them for up to three months. When you want to eat them, just thaw them overnight in the fridge. When stored properly, these cookie bars last about one week at room temperature. If frozen, they keep well for about three months. Just remember, the sooner you eat them, the fresher they taste! Enjoy them as a fun treat any time. You can tell the bars are done when the edges turn a light golden color. A toothpick test works well too. Insert a toothpick into the center. If it comes out clean, they are ready. Bake them for 20-25 minutes for the best results. Keep an eye on them towards the end to avoid overbaking. Yes, you can use many types of sprinkles! Mix and match colors to fit any theme. Nonpareils, jimmies, or even chocolate sprinkles work well. Just ensure the sprinkles are safe for baking. Some sprinkles might bleed their color, so choose wisely for the best look. Royal icing is made with egg whites and sugar, giving it a hard finish. It dries well, making it great for decoration. Cream cheese frosting is rich and creamy, with a soft texture. It tastes sweet and tangy, making it perfect for spreading. Both add a delicious touch to your Funfetti Sugar Cookie Bars! We covered all the key steps to make delicious Funfetti Sugar Cookie Bars. You learned about ingredients, preparation, and baking process. The tips helped avoid common mistakes. You can also add your favorite flavors and toppings for a twist. Remember the best storage tips to keep them fresh. Enjoy sharing these tasty treats with friends. Now, it’s time to bake and have fun!

Why I Love This Recipe

  1. Fun and Festive: These Funfetti Sugar Cookie Bars bring a burst of color and joy to any occasion, making them perfect for celebrations or just a sweet treat at home.
  2. Easy to Make: With simple ingredients and straightforward steps, these cookie bars are quick to prepare, allowing you to enjoy delicious homemade treats in no time.
  3. Soft and Chewy: The texture of these bars is incredibly soft and chewy, providing the perfect bite that everyone will love.
  4. Customizable Toppings: You can top these bars with royal icing or cream cheese frosting and extra sprinkles, allowing you to personalize them to your taste.

Ingredients

List of Ingredients

– 2 ½ cups all-purpose flour

– 1 teaspoon baking powder

– ½ teaspoon baking soda

– ½ teaspoon salt

– ¾ cup unsalted butter, softened

– 1 cup granulated sugar

– ½ cup brown sugar, packed

– 2 large eggs

– 2 teaspoons vanilla extract

– ½ cup rainbow sprinkles (plus extra for topping)

– 1 cup royal icing or cream cheese frosting (optional for topping)

Ingredient Tips

When choosing flour, use unbleached all-purpose flour. It gives the best texture. Make sure the butter is softened. This helps it mix well with the sugars. Use fresh eggs for the best flavor. For sprinkles, choose colorful ones to make your bars pop. If you want a sweeter treat, go for cream cheese frosting.

Possible Ingredient Substitutions

You can swap all-purpose flour with a gluten-free blend if needed. Use coconut oil or margarine instead of butter for a dairy-free option. For a lower sugar version, try using a sugar substitute. You can also replace eggs with flax eggs for a vegan option. If you don’t have sprinkles, chopped nuts or dried fruit work well too.

Step-by-Step Instructions

Preparation Steps

1. Start by preheating your oven to 350°F (175°C).

2. Line a 9×13 inch baking pan with parchment paper. Leave some overhang for easy removal.

3. In a medium bowl, whisk together 2 ½ cups of all-purpose flour, 1 teaspoon of baking powder, ½ teaspoon of baking soda, and ½ teaspoon of salt. Set this mixture aside.

4. In a large bowl, beat ¾ cup of softened unsalted butter, 1 cup of granulated sugar, and ½ cup of packed brown sugar. Mix until light and fluffy, about 2-3 minutes.

5. Add 2 large eggs one at a time, mixing well after each addition. Then, add 2 teaspoons of vanilla extract.

Baking Process

6. Gradually add the dry mixture to the wet ingredients. Mix on low speed until just combined.

7. Gently fold in ½ cup of rainbow sprinkles. Ensure they are evenly distributed in the batter.

8. Pour the batter into your prepared baking pan. Spread it evenly using a spatula.

9. Bake for 20-25 minutes. The edges should be lightly golden. A toothpick inserted in the center should come out clean.

Cooling and Frosting Instructions

10. Let the cookie bars cool in the pan on a wire rack. Use the parchment paper overhang to lift them out easily.

11. Once completely cool, spread 1 cup of royal icing or cream cheese frosting on top if you like.

12. Add extra rainbow sprinkles on top for decoration.

13. Cut into squares or rectangles before serving.

Tips & Tricks

How to Achieve the Perfect Texture

For soft, chewy bars, use room temperature butter. It helps the sugar mix well. Beat the butter and sugars until fluffy. This adds air and makes the bars light. Avoid mixing too long after adding flour. You want a soft dough, not a hard one. When folding in sprinkles, do it gently. This keeps the bars from becoming tough.

Troubleshooting Common Issues

If your bars are dry, you may have overbaked them. Check them at 20 minutes. If they are too crumbly, try adding a little milk next time. Too much flour can cause dryness too, so measure carefully. If they spread too much, your butter may have been too warm. Chill the dough for 30 minutes before baking if needed.

Serving Suggestions

These bars taste great on their own. For a fun twist, add frosting on top. Cream cheese frosting pairs well with the sweetness. You can cut them into small squares for parties. Serve with a scoop of ice cream for a yummy dessert. These bars are perfect for birthdays or any celebration.

Pro Tips

  1. Use Room Temperature Ingredients: Ensuring your butter and eggs are at room temperature helps create a smooth batter and allows for better incorporation of air, resulting in fluffier cookie bars.
  2. Don’t Overmix the Batter: Once you add the dry ingredients to the wet, mix just until combined to avoid tough cookie bars. A few flour streaks are okay!
  3. Let Them Cool Completely: Allow the cookie bars to cool completely in the pan before frosting. This prevents the frosting from melting and ensures a beautiful finish.
  4. Customize Your Sprinkles: Feel free to use themed sprinkles for special occasions, like red and green for Christmas or pastel colors for Easter, to elevate your cookie bars!

Variations

Flavor Customizations

You can change the flavor of your Funfetti sugar cookie bars easily. For a twist, try adding almond extract instead of vanilla. This gives your bars a nice nutty taste. You can also mix in different flavored extracts, like lemon or orange, to brighten up the flavor. Another fun idea is to use chocolate chips or peanut butter chips along with the sprinkles. This adds a great texture and taste.

Dietary Modifications

If you need to make your cookie bars gluten-free, swap out the all-purpose flour for a gluten-free blend. Make sure it works for baking to keep the texture right. For dairy-free options, use vegan butter instead of unsalted butter. You can also use flax eggs in place of regular eggs. Just mix one tablespoon of ground flaxseed with three tablespoons of water, let it sit for a few minutes, and use it like an egg.

Creative Toppings

Toppings can make your cookie bars even more fun! If you love frosting, use royal icing or cream cheese frosting on top. You can mix in some extra sprinkles for color. Another idea is to drizzle melted chocolate over the bars. Dark, white, or milk chocolate all work well. For a fruity twist, try adding fresh berries on top. They add a nice tartness and look great too.

Storage Info

Best Storage Practices

To keep your Funfetti sugar cookie bars fresh, store them in an airtight container. This helps keep them soft and tasty. If you have frosting on top, wait until it’s set before covering. You can also wrap the bars in plastic wrap for extra protection. Store them at room temperature for the best taste.

Freezing Instructions

You can freeze these cookie bars for later. First, let them cool completely. Then, cut them into squares. Wrap each square in plastic wrap, then place them in a freezer bag. You can freeze them for up to three months. When you want to eat them, just thaw them overnight in the fridge.

Shelf Life of Cookie Bars

When stored properly, these cookie bars last about one week at room temperature. If frozen, they keep well for about three months. Just remember, the sooner you eat them, the fresher they taste! Enjoy them as a fun treat any time.

FAQs

How do I know when Funfetti Sugar Cookie Bars are done?

You can tell the bars are done when the edges turn a light golden color. A toothpick test works well too. Insert a toothpick into the center. If it comes out clean, they are ready. Bake them for 20-25 minutes for the best results. Keep an eye on them towards the end to avoid overbaking.

Can I use different types of sprinkles?

Yes, you can use many types of sprinkles! Mix and match colors to fit any theme. Nonpareils, jimmies, or even chocolate sprinkles work well. Just ensure the sprinkles are safe for baking. Some sprinkles might bleed their color, so choose wisely for the best look.

What’s the difference between royal icing and cream cheese frosting?

Royal icing is made with egg whites and sugar, giving it a hard finish. It dries well, making it great for decoration. Cream cheese frosting is rich and creamy, with a soft texture. It tastes sweet and tangy, making it perfect for spreading. Both add a delicious touch to your Funfetti Sugar Cookie Bars!

We covered all the key steps to make delicious Funfetti Sugar Cookie Bars. You learned about ingredients, preparation, and baking process. The tips helped avoid common mistakes. You can also add your favorite flavors and toppings for a twist. Remember the best storage tips to keep them fresh. Enjoy sharing these tasty treats with friends. Now, it’s time to bake and have fu

- 2 ½ cups all-purpose flour - 1 teaspoon baking powder - ½ teaspoon baking soda - ½ teaspoon salt - ¾ cup unsalted butter, softened - 1 cup granulated sugar - ½ cup brown sugar, packed - 2 large eggs - 2 teaspoons vanilla extract - ½ cup rainbow sprinkles (plus extra for topping) - 1 cup royal icing or cream cheese frosting (optional for topping) When choosing flour, use unbleached all-purpose flour. It gives the best texture. Make sure the butter is softened. This helps it mix well with the sugars. Use fresh eggs for the best flavor. For sprinkles, choose colorful ones to make your bars pop. If you want a sweeter treat, go for cream cheese frosting. You can swap all-purpose flour with a gluten-free blend if needed. Use coconut oil or margarine instead of butter for a dairy-free option. For a lower sugar version, try using a sugar substitute. You can also replace eggs with flax eggs for a vegan option. If you don’t have sprinkles, chopped nuts or dried fruit work well too. {{ingredient_image_1}} 1. Start by preheating your oven to 350°F (175°C). 2. Line a 9x13 inch baking pan with parchment paper. Leave some overhang for easy removal. 3. In a medium bowl, whisk together 2 ½ cups of all-purpose flour, 1 teaspoon of baking powder, ½ teaspoon of baking soda, and ½ teaspoon of salt. Set this mixture aside. 4. In a large bowl, beat ¾ cup of softened unsalted butter, 1 cup of granulated sugar, and ½ cup of packed brown sugar. Mix until light and fluffy, about 2-3 minutes. 5. Add 2 large eggs one at a time, mixing well after each addition. Then, add 2 teaspoons of vanilla extract. 6. Gradually add the dry mixture to the wet ingredients. Mix on low speed until just combined. 7. Gently fold in ½ cup of rainbow sprinkles. Ensure they are evenly distributed in the batter. 8. Pour the batter into your prepared baking pan. Spread it evenly using a spatula. 9. Bake for 20-25 minutes. The edges should be lightly golden. A toothpick inserted in the center should come out clean. 10. Let the cookie bars cool in the pan on a wire rack. Use the parchment paper overhang to lift them out easily. 11. Once completely cool, spread 1 cup of royal icing or cream cheese frosting on top if you like. 12. Add extra rainbow sprinkles on top for decoration. 13. Cut into squares or rectangles before serving. For soft, chewy bars, use room temperature butter. It helps the sugar mix well. Beat the butter and sugars until fluffy. This adds air and makes the bars light. Avoid mixing too long after adding flour. You want a soft dough, not a hard one. When folding in sprinkles, do it gently. This keeps the bars from becoming tough. If your bars are dry, you may have overbaked them. Check them at 20 minutes. If they are too crumbly, try adding a little milk next time. Too much flour can cause dryness too, so measure carefully. If they spread too much, your butter may have been too warm. Chill the dough for 30 minutes before baking if needed. These bars taste great on their own. For a fun twist, add frosting on top. Cream cheese frosting pairs well with the sweetness. You can cut them into small squares for parties. Serve with a scoop of ice cream for a yummy dessert. These bars are perfect for birthdays or any celebration. Pro Tips Use Room Temperature Ingredients: Ensuring your butter and eggs are at room temperature helps create a smooth batter and allows for better incorporation of air, resulting in fluffier cookie bars. Don’t Overmix the Batter: Once you add the dry ingredients to the wet, mix just until combined to avoid tough cookie bars. A few flour streaks are okay! Let Them Cool Completely: Allow the cookie bars to cool completely in the pan before frosting. This prevents the frosting from melting and ensures a beautiful finish. Customize Your Sprinkles: Feel free to use themed sprinkles for special occasions, like red and green for Christmas or pastel colors for Easter, to elevate your cookie bars! {{image_2}} You can change the flavor of your Funfetti sugar cookie bars easily. For a twist, try adding almond extract instead of vanilla. This gives your bars a nice nutty taste. You can also mix in different flavored extracts, like lemon or orange, to brighten up the flavor. Another fun idea is to use chocolate chips or peanut butter chips along with the sprinkles. This adds a great texture and taste. If you need to make your cookie bars gluten-free, swap out the all-purpose flour for a gluten-free blend. Make sure it works for baking to keep the texture right. For dairy-free options, use vegan butter instead of unsalted butter. You can also use flax eggs in place of regular eggs. Just mix one tablespoon of ground flaxseed with three tablespoons of water, let it sit for a few minutes, and use it like an egg. Toppings can make your cookie bars even more fun! If you love frosting, use royal icing or cream cheese frosting on top. You can mix in some extra sprinkles for color. Another idea is to drizzle melted chocolate over the bars. Dark, white, or milk chocolate all work well. For a fruity twist, try adding fresh berries on top. They add a nice tartness and look great too. To keep your Funfetti sugar cookie bars fresh, store them in an airtight container. This helps keep them soft and tasty. If you have frosting on top, wait until it's set before covering. You can also wrap the bars in plastic wrap for extra protection. Store them at room temperature for the best taste. You can freeze these cookie bars for later. First, let them cool completely. Then, cut them into squares. Wrap each square in plastic wrap, then place them in a freezer bag. You can freeze them for up to three months. When you want to eat them, just thaw them overnight in the fridge. When stored properly, these cookie bars last about one week at room temperature. If frozen, they keep well for about three months. Just remember, the sooner you eat them, the fresher they taste! Enjoy them as a fun treat any time. You can tell the bars are done when the edges turn a light golden color. A toothpick test works well too. Insert a toothpick into the center. If it comes out clean, they are ready. Bake them for 20-25 minutes for the best results. Keep an eye on them towards the end to avoid overbaking. Yes, you can use many types of sprinkles! Mix and match colors to fit any theme. Nonpareils, jimmies, or even chocolate sprinkles work well. Just ensure the sprinkles are safe for baking. Some sprinkles might bleed their color, so choose wisely for the best look. Royal icing is made with egg whites and sugar, giving it a hard finish. It dries well, making it great for decoration. Cream cheese frosting is rich and creamy, with a soft texture. It tastes sweet and tangy, making it perfect for spreading. Both add a delicious touch to your Funfetti Sugar Cookie Bars! We covered all the key steps to make delicious Funfetti Sugar Cookie Bars. You learned about ingredients, preparation, and baking process. The tips helped avoid common mistakes. You can also add your favorite flavors and toppings for a twist. Remember the best storage tips to keep them fresh. Enjoy sharing these tasty treats with friends. Now, it’s time to bake and have fun!

Funfetti Sugar Cookie Bars

Delicious and colorful sugar cookie bars topped with sprinkles.
Print Recipe Pin Recipe
Prep Time 15 minutes
Cook Time 25 minutes
Total Time 45 minutes
Course Dessert
Cuisine American
Servings 12
Calories 150 kcal

Ingredients
  

  • 2.5 cups all-purpose flour
  • 1 teaspoon baking powder
  • 0.5 teaspoon baking soda
  • 0.5 teaspoon salt
  • 0.75 cup unsalted butter, softened
  • 1 cup granulated sugar
  • 0.5 cup brown sugar, packed
  • 2 large eggs
  • 2 teaspoons vanilla extract
  • 0.5 cup rainbow sprinkles
  • 1 cup royal icing or cream cheese frosting (optional for topping)

Instructions
 

  • Preheat your oven to 350°F (175°C) and line a 9x13 inch baking pan with parchment paper, leaving some overhang for easy removal later.
  • In a medium bowl, whisk together the flour, baking powder, baking soda, and salt. Set aside.
  • In a large bowl, using a hand mixer or stand mixer, beat the softened butter, granulated sugar, and brown sugar together until light and fluffy, about 2-3 minutes.
  • Add in the eggs one at a time, mixing well after each addition, followed by the vanilla extract.
  • Gradually add the dry ingredient mixture to the wet ingredients, mixing on low speed until just combined.
  • Gently fold in the rainbow sprinkles until evenly distributed throughout the batter.
  • Pour the batter into the prepared baking pan, spreading it evenly. Use a spatula to smooth out the top.
  • Bake for 20-25 minutes, or until the edges are lightly golden and a toothpick inserted into the center comes out clean.
  • Allow the cookie bars to cool in the pan on a wire rack before transferring them out using the parchment paper overhang.
  • If desired, spread royal icing or cream cheese frosting on top once they are completely cool, then sprinkle additional rainbow sprinkles for decoration.
  • Once frosted, cut into squares or rectangles.

Notes

Use parchment paper for easy removal from the pan.
Keyword bars, cookies, dessert, funfetti

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