Microwave Banana Cake - cooking recipe

Ingredients

1/2 c. butter or margarine
1 1/2 c. sugar
3 eggs
1 c. mashed bananas
1 tsp. baking soda
1/2 c. commercial sour cream
2 c. all-purpose flour
1 tsp. vanilla

Preparation

Cream butter or margarine, stirring sugar in gradually. Separate eggs.
Beat egg yolks and stir into sugar mixture.
Mix bananas into sugar mixture.