Banana Cake with Peanut Butter Frosting

Cake:
2 cups sugar
3/4 cup butter flavor Crisco
3 eggs, beaten
1 teaspoon baking powder
1 teaspoon baking soda
2 1/2 cups flour
1/2 cup sour milk
1 1/2 cups mashed bananas, about 3 large
2 teaspoons vanilla

Beat all ingredients together about 3 minutes with electric mixer. Put it in a greased and floured 9 x 12 pan and bake at 350F for 30 to 35 minutes or until knife inserted in middle comes out clean.

Frosting:
3 cups confectioners sugar
1/2 cup peanut butter
dash vanilla
just enough milk to make spreading consistency

Beat all ingredients together and frost cake.