Mom always made the icebox cake for us when we were kids.She made it with cooking pudding. You can add bananas or pineapple and you can top it off with whipped cream. I always like it this way the way mommy made it.
Once the pudding melts into the graham crackers it just melts in your mouth.
The box says 2 cups of milk I added 1/2 extra which gave me a little bit more pudding. Blend the pudding mixes in different medium sized bowls. Stir until well blended. If using cooking pudding follow the instructions on the box.
Place one single layer of graham crackers(save some) in the bottom of a 9x13" baking pan. Leave the crackers whole, do not crumble. You can fill in the gaps with broken graham crackers. Spread the chocolate or vanilla on top of crackers (save a little of each pudding for the last layers. Cover with another layer of crackers, Spread the remaining of the pudding on top follow by another layer of crackers. Now put the saved puddings of vanilla and chocolate making a swirl on top. Take the saved crackers and crumble them on top.
Cover the pan with plastic wrap and chill in the refrigerator for 4 hours. Once finished watch your fingers it doesn't last.