1 box yellow cake mix (plus ingredients to make cake)
2 boxes (small) instant banana pudding
4 c milk
8 oz Cool Whip
20 vanilla wafers, crushed
sliced bananas (as many as you want)
Prepare cake in 9x13 pan.
Let cool a few minutes.
Poke holes in cake, all the way to bottom.
Prepare pudding (mix with milk).
Pour pudding over cake, filling all the holes.
Refrigerate for two hours or until set.
Top with sliced bananas, Cool Whip, and crushed vanilla wafers.