Ingredients
2 2/3 cups all-purpose flour
1/3 cup unsweetened Dutch-process cocoa powder
3/4 teaspoon baking powder (omit if making thumbprints, ball cookies, or spritz cookies)
1/2 teaspoon salt
2 sticks unsalted butter
1 cup sugar
1 large egg
2 teaspoons pure vanilla extract
Preparation
Whisk together flour, cocoa powder, baking powder, and salt in a large bowl. Beat butter and granulated sugar with a mixer on medium-high speed until pale and fluffy. Beat in egg and vanilla. Reduce speed to low. Add flour mixture, and beat until combined.
