Source of Recipe
An old recipe of my grandmother's; my mother and grandfather love it on spice cake. Grandma's recipe card says that this frosting is similar to a banana-frosted spice cake A&P used to sell back in the very early 70s.
List of Ingredients
1 large very ripe banana, mashed
1/2 teaspoon lemon juice
1/4 cup butter, softened
3-3 1/2 cups powdered sugar, sifted
1. Mix the banana and lemon juice together.
2. Cream the butter with 1 cup of the powdered sugar; then add the banana and enough remaining sugar to make the mixture thick and spreadable.