2 pkg. instant vanilla pudding (small)
3 c. milk
1 (8 oz.) Cool Whip
1 box graham crackers
1 c. sugar
1/3 c. cocoa
1/4 c. milk
1 tsp. milk
1 tsp. vanilla
1 tbsp. butter

Mix pudding with 3 cups milk, add Cool Whip. Line 9 x 12 inch pan with graham crackers. Pour a thin layer over crackers, another layer crackers, another thin layer pudding; end up with graham crackers on top. Combine 1 cup sugar, 1/3 cup cocoa, 1/4 cup milk, 1 tsp. vanilla. Bring to boil, 1 or 2 minutes. Cool for a few minutes; add 1 tbsp. butter. Spread on top of cake. Refrigerate overnight.