2/3 c. butter
1 1/2 c. sugar
2 eggs
1/2 c. cocoa
1 1/3 c. flour
1/4 tsp. salt
1 tsp. baking powder
1/2 c. sour cream (optional, makes cookies moister)

Melt butter in large saucepan. Add sugar, eggs, cocoa, flour, salt, baking powder and sour cream. Stir well. Pour into greased 8 x 13 inch Pyrex pan. Bake 20-25 minutes at 350 degrees. These are easy. There's only one pot and little mess.