1 box graham crackers
2 sm. boxes vanilla instant pudding
3 1/2 c. milk
1 (9 oz.) Cool Whip (or 8 oz.)

Butter bottom of 9 x 13 inc pan, line with whole crackers. Prepare pudding - using 3 1/2 cups milk. Fold in Cool Whip.

Pour 1/2 pudding mixture over the crackers. Cover with another layer of crackers. Repeat with the remainder of the pudding - cover with crackers.

TOPPING:

2 boxes sweet chocolate, melted and cooled (German chocolate)
2 tsp. lite corn syrup
2 tsp. vanilla
2 tbsp. butter
1 1/2 c. confectioners' sugar
3 tbsp. milk

Put all of the above in large bowl and beat, then spread over cake and refrigerate 24 hours.