1 box Nabisco low-fat graham crackers
2 small boxes sugar-free instant vanilla pudding
1 small box sugar-free instant chocolate pudding
12 oz. fat-free Cool Whip
4 1/2 c. skim milk

Mix the vanilla pudding mix with 3 cups of milk, then fold in Cool Whip. Line a 13 x 9 pan with graham crackers. Spread 1/2 of the pudding mixture over the crackers. Put another layer of graham crackers and top with remaining pudding. Put a third layer of graham crackers. Mix the chocolate pudding mix with 1 1/2 cups of milk and spread entire chocolate mixture on grahams. Chill 4 to 6 hours.