2 ripe bananas, mashed
1 box yellow cake mix
1 box instant pudding and pie filling, either vanilla or banana
4 eggs
1 c. water
1/4 c. cooking oil

Mix all and beat 2 minutes. Put in pan greased with butter. Cook little over an hour in 350 degree oven. When done, let cool for 15-20 minutes before turning out. When cool, sprinkle with powdered sugar.