MAHOGANY CAKE with FUDGE FROSTING ~ with 4 tablespoons of Cocoa ~

Recently I recieved an order for a birthday cake. While the cake baked and the house was wrapped in it's aroma, I had my brother pestering me for a slice of it :) He knew he wouldn't get a piece from my hands, so he pinched a bit from all 4 corners of the cake...he made sure that they were very even looking so that I wouldn't doubt him! LOL! And I did doubt him :) But they were too tiny and