2 c. flour
1 c. sugar
2 tsp. baking soda
5 tbsp. cocoa
1 c. mayonnaise
1 c. cold water
1 tsp. vanilla

Sift together flour, sugar, baking soda, and cocoa; add mayonnaise, cold water, and vanilla. Bake at 350 degrees for 20 minutes.

ICING:

1 lb. 10x sugar
5 tbsp. cocoa
3/4 c. peanut butter

Add enough water to make an icing consistency.