This novelty cake of the 1950s became a popular conversation-piece dessert. Mayonnaise replaces eggs and oil in the recipe.

2 cups all-purpose flour
1 cup real mayonnaise
1 cup granulated sugar
1 cup cold water (or cold coffee for mocha-flavor cake)
1/3 cup cocoa powder
2 teaspoons baking soda
1/2 teaspoon salt

Preheat oven to 350 degrees F.

Combine all cake ingredients in bowl and whisk until very smooth. Pour into 2 greased and floured 8-inch round pans. Bake for 25 to 30 minutes, until wooden pick inserted in center comes out clean. Let cool 5 minutes in pan, then turn out and cool completely on wire racks. Fill and frost top and sides with Devil's Food Fudge Frosting.

Devil's Food Fudge Frosting
3 cups confectioners' sugar
1/2 cup cocoa powder
1/2 cup (1 stick) butter or margarine, softened
3 tablespoons water or cold coffee
1 teaspoon vanilla extract

Combine all ingredients in bowl and beat until smooth and creamy.