No Bake chocolate eclair

1. Ingredients
   Filling:
   2 (3.5 oz.) boxes vanilla instant... pudding
   3 c. milk
   1 (8 oz.) container Cool Whip
   Graham crackers
   
   Topping:
   1/3 c. cocoa
   1 c. sugar
   1/4 c. milk
   1 stick (1/2 c.) butter (or margarine)
   1 tsp. vanilla
   
   Directions
   For the filling:
   1. Combine pudding mix and milk; beat. Stir in Cool Whip.
   2. Place a layer of graham crackers in the bottom of a 9x13" dish. Spread 1/2 of the pudding mixture over the graham crackers. Repeat with another layer of graham crackers and pudding; then top with a final layer of graham crackers.
   
   For the topping:
   3. Bring cocoa, milk, and sugar to a full rolling boil; boil about 1 minute, stirring very frequently. Remove from heat and cool one minute. Add butter and vanilla; stir until butter is melted.
   4. Pour chocolate topping over the top layer of graham crackers.
   5. Refrigerate overnight.
   That's it! Enjoy!