A very moist and delicious cake.

2 cups unsifted flour
2/3 cup cocoa
1 1/4 teaspoons baking soda
1/4 teaspoon baking powder
1 2/3 cups granulated sugar
4 eggs
1 teaspoon vanilla extract
1 cup mayonnaise
1 1/3 cups water

Preheat oven to 350 degrees F. Grease and flour bottoms of 2 (9-inch) layer cake pans.

Mix first 4 ingredients, set aside.

In a large bowl with mixer at high speed beat the next 3 ingredients 3 minutes or until light and fluffy. At low speed, beat in mayonnaise.

Add flour mixture in 4 additions alternately with water, beginning and ending with flour.

Pour into pans. Bake for 30 to 35 minutes or until cake tester inserted in center comes out clean. Cool in pans 10 minutes. Remove cakes from pans and cool completely on racks. Frost cake with your favorite frosting.