Banana Cake

I was cleaning out my church bag, and I found a newsletter from the Buffalo Ward, from October '07, and there's a recipe that I wanted to put here.

Briste's Banana Cake

1 Yellow Cke Mix
1/3 c. Oil
1/2 tsp. baking soda
1 c. buttermilk (instead of water)
3 ripe bananas (mashed)
3 eggs

Bake @ 325F for 30 minutes or a little longer. Test cake

Frosting:
1 stick of butter
1 lb. Powdered Sugar
1 tsp. vanilla extract
Continue adding cool whip to this mixture until fluffy (min. one tub)