Add flour, sieve cocoa powder,baking powder and baking soda mix using whsiker

In a bowl add egg,brown sugar and flavor mix using mixer

Add mayonnaise and mix again

Add the dry ingredients to wet ingredients and mix using mixer,add hot water,vinegar and mix

Grease the pan Sprinkles flour,pour the batter and bake for 25_30 min

Frost with chocolate frosting..done