Ingredients:
2/3 c. margarine
4 pkg. Sweet 'n Low or 2 or 3 tsp.
2 eggs, separated (stiffly beat
whites)
1 c. mashed bananas
1 1/2 c. flour
1 tsp. baking soda
1/4 tsp. baking powder
1/4 tsp. salt
1/4 c. sour cream
1/2 tsp. vanilla
1/2 c. chopped nuts

Directions:
Cream Sweet 'n Low and margarine. Add egg yolks and mix well. Add banana, sift dry ingredients. Add alternately with sour cream to shortening mixture. Mix real well. Add vanilla, stiffly beaten egg whites and nuts. Pour into two 8x8 or 9x9 inch square pans. Does not rise like regular bars.