1 yellow cake mix
3 eggs
1 1/3 c. water
1/2 c. peanut butter
1/3 c. oil

Mix cake ingredients together. Bake 1 hour at 350 degrees. Cool.

FROSTING:

Beat until smooth: 1/2 cup butter, 1/2 cup peanut butter, 1/2 teaspoon salt, 2 1/4 cup powdered sugar, 1/2 teaspoon vanilla, and 1/4 cup strong coffee. Spread over cake.