Chocolate Eclair CakePrepare 24 Hours Ahead

Ingredients
- 1 box 3 pkg graham crackers
- 2 small pkg vanilla instant pudding
- 1 8 oz carton Cool Whip
- 2 tsp cornstarch
- 1 tsp vanilla
- 2 oz melted chocolate
- 3 Tbsp melted margarine
- 1 12 c powdered sugar
- 3 Tbsp milk
Directions
- Prepare 24 hours ahead