Grease and sugar a 12 ... pan. Prepare the cake mix exactly according to box ... 1/2 cup peanut butter in microwave on high for ... the peanut butter frosting.
Heat oven to 350 degrees. ... mashed bananas and butter; mix well (mixture should ... until smooth. Add cake mix and flour. Beat at ... in refrigerator. 12-15 servings.
Cream shortening. Gradually add sugar, ... 9 inch round cake pans and line with wax ... well; stir in butter. Stir butter mixture in ... fluffy. Stir in vanilla.