Punch Bowl Chocolate Trifle Dessert

I make this once, every five years. Its so rich, you can't make it too often.

1 chocolate or white cake, cute into small squares (I used this cake recipe)
2 tubs of Cool Whip
3 packages of instant pudding; 2 chocolate, 1 vanilla
4 crispy crunch bars, broken
5 cups of milk

Mix instant puddings with 5 cups of milk.
Layer ingredients into a large bowl in the following order:
Cake
Pudding
Cool Whip
Cake
Pudding
Crispy Crunch
Cool Whip

Sprinkle the remaining Crispy Crunch pieces on the Cool Whip. Refrigerate until ready to serve.