Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper.
In a bowl, whisk together the flour, cocoa powder, baking soda, salt, ginger, cinnamon, and nutmeg until well combined.
In a large mixing bowl, cream the softened butter and brown sugar together until light and fluffy using an electric mixer on medium speed.
Beat in the molasses, egg, and vanilla extract until fully incorporated.
Gradually add the dry ingredients to the wet mixture, mixing on low speed until a smooth dough forms. Ensure there are no flour pockets left.
Cover the bowl with plastic wrap and refrigerate the dough for at least 30 minutes to firm it up.
Once chilled, scoop tablespoons of dough and roll them into balls. Then, roll each ball in powdered sugar until well coated.
Place the powdered sugar-coated dough balls on the prepared baking sheet, spacing them about 2 inches apart.
Bake for 10-12 minutes, or until the edges are set but the centers are still soft. They will continue to bake as they cool.
Take them out of the oven and let cool on the baking sheet for 5 minutes before transferring to a wire rack to cool completely.
Notes
Stack the cookies in a festive tin or arrange them on a platter dusted with extra powdered sugar for a snowy effect. Consider adding a sprig of rosemary or a cinnamon stick for decorative flair!