Submitted by Susan Clarke
Preheat oven to 350 degrees.
1/4 cup margarine or butter
3/4 cup sugar
1/2 tsp vanilla
1 cup flour
1/2 tsp salt
1/2 tsp Baking powder
1/4 tsp baking soda
1/2 cup mashed ripe banana
2-3 Tablespoons of sour milk
Mix all ingredients and pour into 8 x 8 greased pan Bake 30 to 40 min until golden.