1 cup butter
2 cups semisweet chocolate chips, divided
1-1/2 cups sugar
1/2 cup baking cocoa
1-1/2 t. instant coffee granules
1-1/2 cups packed brown sugar
4 eggs, beaten
1-1/2 T. vanilla extract
4 cups all-purpose flour
1 t. baking powder
1/2 t. salt
3/4 cup chopped walnuts (optional)
In a large bowl, melt butter and 1 cup chocolate chips in the microwave (or use your stovetop if desired). Stir until smooth. Combine the sugar, cocoa, and coffee; add butter mixture and stir. Stir in brown sugar. Add eggs and vanilla. Combine flour, baking powder, and salt; gradually add to chocolate mixture. Stir in the walnuts and remaining chocolate chips.
Drop by rounded teaspoonfuls 2 in. apart onto ungreased baking sheets. Bake at 350 degrees for 8-10 minutes or until edges are set. Remove to wire racks to cool.