Banana Squares

2 eggs, separated

2/3 cup shortening

1-1/2 cups sugar

1 cup mashed ripe bananas (2 to 3 medium)

1-1/2 cups all-purpose flour

1 teaspoon baking soda

1/4 cup buttermilk

1/2 teaspoon vanilla extract

1/2 cup chopped walnuts, optional

Whipped cream and sliced bananas, optional

In a small bowl, beat egg whites until soft peaks form; set aside. In a large bowl, cream shortening and sugar. Beat in egg yolks; mix well. Add bananas. Combine flour and baking soda; add to creamed mixture alternately with buttermilk, beating well after each addition. Add vanilla. Fold in egg whites. Fold in nuts if desired. Pour into a greased 13x9 baking dish.

Bake at 350 degrees for 45-50 minutes. Cool on a wire rack. If desired, garnish with whipped cream and a few banana slices.