2 cups all-purpose flour, unsifted
2/3 cup unsweetened cocoa
1 1/4 tsp. baking soda
1/4 tsp. baking powder
3 eggs
1 2/3 cups (less 1 tbsp.) sugar
1 tsp. vanilla
1 cup mayonnaise
1 1/3 cups water

Preheat oven to 350°F. Grease and flour two 9-inch pans.

In medium bowl mix flour, cocoa, baking soda and baking powder. In large bowl mix on high eggs, sugar and vanilla for 3 minutes or until light and fluffy, scraping occasionally. Reduce to low and beat in mayonnaise until blended.

Add flour mixture alternately with water. Begin and end with flour (add flour in 4 parts). Pour into prepared pan. Bake at 350°F for 30 minutes or until toothpick comes out clean. Cool 10 minutes. Remove from pan.

CHOCOLATE FROSTING:

1/3 cup butter, melted
1/3 cup cocoa
1/2 tsp. vanilla
2 cups powdered sugar
2 tbsp. milk (more as needed)

Whisk together butter and cocoa. Add vanilla. Mix in powdered sugar gradually and alternately with milk. Frost cooled cake.