1 c. shortening
3 c. sugar
4 eggs
4 c. sifted flour
1/2 tsp. baking powder
1 1/2 tsp. baking soda
1/2 tsp. salt
2 c. mashed ripe bananas
1/2 c. buttermilk
1 tbsp. vanilla

Sift dry ingredients together. Add all other ingredients. Beat until well blended. Bake in 9x13x3-inch pan at 350 degrees for 50-60 minutes.