Chocolate Chocolate Chip Cookies

1/2 C butter, softened
1/4 C brown sugar
1/2 C granulated sugar
1 egg 1 tsp. vanilla extract
1 tsp. instant espresso powder (optional)
1/4 C unsweetened cocoa powder
3/4 C all-purpose flour
1/2 tsp. baking soda
1/2 tsp. salt
1 C semisweet chocolate chips

Preheat oven to 375' Line a baking sheet with parchment paper.

Combine butter and sugars in a mixing bowl. Beat with a mixer at medium-high speed until light and fluffy, about 2 minutes. Add egg, vanilla, and expresso powder, mixing until well combined. Add cocoa, flour, baking soda, and salt, mixing on low speed until dry ingredients are incorporated. Add chocolate chips and mix for a few seconds, until evenly distributed. Drop dough by tablespoons onto a baking sheet, about 1 1/2 inches apart.

Bake about 8 minutes, until cookies look set in center. Cool 2 minutes on baking sheet, then transfer to wire rack to cool completely. Makes about 2 1/2 dozen cookies. These cookies are a brownie-chocolate chip cookie.