1 box vanilla wafers
4 or 5 bananas
1 lg. box vanilla instant pudding
2 tsp. vanilla
1 (8 oz.) carton sour cream
1 med. container Cool Whip

Make instant pudding as directed on package. When thickens, add sour cream and vanilla. Layer bananas and vanilla wafers in a square pan. Spread pudding between layers. Top with Cool Whip and chill before serving.