Recipe by: Taste of Home Aug/Sept 95 In a mixing bowl, cream butter and sugar. Add eggs and vanilla; mix well. Combine flour, cocoa and baking powder. Stir into creamed mixture just until blended (do not overmix). Pour into a greased jellyroll pan(15x10x1 inch). Sprinkle with chips and nuts. Bake 350 degrees 30-35 minutes. ----