1 large box instant vanilla pudding
8 oz. Cool Whip
1 can sweetened condensed milk
3 c. sweet milk
1 box graham crackers

Mix pudding and milks together; add Cool whip and blend until smooth. Line a 9x13-inch pan with graham crackers. Layer pudding, then graham crackers, pudding, then graham crackers.

Topping:

1/2 c. cocoa
1/2 c. milk
1 c. butter
2 c. sugar

Combine topping ingredients in a saucepan and boil for 2 minutes. Spread over the last layer of crackers. Keep refrigerated.