These delicious and chewy Frosted Chocolate Cookies are so fun and festive. They are topped with vanilla buttercream and can be customized to suit any holiday or event. All you have to do is switch out the sprinkles to match your theme and you have a perfect and festive treat!
Preheat the oven to 350°F. Line a baking sheet with parchment paper.
In the bowl of your mixer, combine the butter and brown sugar. Beat on medium speed for 2 minutes or until light and fluffy.
1 cup unsalted butter, softened, 1 ½ cups brown sugar
Add the egg yolks and vanilla. Beat until incorporated and you no longer see the egg yolks, scraping the bottom and sides of your bowl with a rubber spatula.
3 egg yolks, 2 teaspoons vanilla
In a separate bowl, combine the flour, cocoa powders, baking powder, and salt. Stir with a whisk to combine. Add the flour mixture to the butter mixture and mix just until combined.
Using a large cookie scoop, drop scooped cookie dough onto prepared cookie sheet, about 2 inches apart. Put cookie dough in the refrigerator for 40 minutes or in the freezer for 20 minutes.
Bake in 350°F oven for 11-13 minutes. Remove from oven and let cool on pan for 5 minutes before transferring to cooling rack to cool completely.
For the Buttercream Frosting:
In the bowl of your mixer, beat the butter on medium speed for 4 minutes or until the butter is pale in color.
6 tablespoons unsalted butter, softened
Add the powdered sugar and vanilla and beat on medium speed for 4 more minutes or until light and fluffy.
2 cups powdered sugar, sifted, ½ teaspoon vanilla
Add the whipping cream and beat until light and fluffy, about 2 minutes.