2 boxes instant vanilla
3 c. milk
1 (8 oz.) sour cream
1 (8 oz.) Cool Whip
sliced bananas
vanilla wafers

Mix vanilla pudding with milk. Set aside. Mix sour cream and Cool Whip together. Add this to vanilla pudding. In a casserole dish, place 1 layer of bananas. Next place 1 layer of pudding on top of bananas; then 1 layer of vanilla wafers. Alternate layers ending with pudding mixture.