I sandwiched it in between layers of chocolate cake mix (I figured I was putting in the time for home made frosting and decorating a birthday cake... I needed to make something easy). I baked my cake in 2 loaf pans and then split them in half, cross wise, so we got an extremely tall, rectangular chocolate peanut butter cake. If you can get past the hideous pictures, you have to give this stuff a try. It's so good! (Obviously, it is better on a Spiderman plate...)
1/2 cup butter, softened
10 oz. cream cheese, softened
5 cups powdered sugar
1 cup peanut butter
2 tsp. vanilla
1. Cream butter and sugar together until smooth and creamy.
2. Add powdered sugar, 1 cup at a time.
3. Stir in peanut butter. Lick beaters.