1 (8 oz.) sour cream
2 (3 1/2 oz.) instant pudding, vanilla OR banana cream
3 1/2 c. milk
1 box vanilla wafers
3-4 lg. bananas
1 (8 oz.) Cool Whip

Mix first 3 ingredients until thick. Layer bananas and wafers in bowl. Pour mixture over the layer. Top with Cool Whip. Pineapple can be used for a pineapple pudding.