Ingredients

  • 1 cup butter, softened
  • 3/4 cup white sugar
  • 3/4 cup packed brown sugar
  • 2 eggs, divided
  • 1 teaspoon vanilla extract
  • 2 cups all-purpose flour
  • 1/2 cup dark cocoa powder
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1 cup chopped walnuts
  • 1 cup white chocolate chips
  • 1 cup semisweet chocolate chips

Method

  • Preheat oven to 350 degrees F (175 degrees C).
  • Beat butter, white sugar, and brown sugar together with an electric mixer in a large bowl until smooth and creamy. Beat 1 egg into butter mixture; beat remaining egg and vanilla extract into butter mixture.
  • Stir flour, cocoa powder, baking soda, and salt together in a bowl; add to creamed butter mixture and beat until the dry ingredients are integrated into a dough.
  • Fold walnuts, white chocolate chips, and semisweet chocolate chips into the dough.
  • Drop dough by teaspoonful onto baking sheets.
  • Bake in preheated oven until browning along the edges, 9 to 12 minutes.