1 box white cake mix
1 box vanilla instant pudding mix
1/2 c. peanut butter

Mix as directed on pudding box adding other 2 ingredients.

PEANUT BUTTER FROSTING:

1/2 c. peanut butter
1 box powdered sugar
1 tbsp. vanilla
1/2 c., shortening
1/4 c. milk

Mix all ingredients well with electric mixer. Add more milk if needed. Spread on cooled cake.