Filling:

whole graham crackers
1 c. brown sugar
1/2 c. milk
1 1/2 c. fine coconut
1/2 c. butter
1 c. graham cracker crumbs

Grease a 9 x 13-inch pan. Line pan with whole graham crackers and set aside. Mix brown sugar, milk and butter, coconut and graham cracker crumbs in a saucepan and boil 10 minutes, stirring constantly. Spread mixture over Whole Graham Crackers. Place another layer of whole graham crackers on top of filling. Frost.

Frosting:

2 c. powdered sugar
3 tbsp. cream or milk
5 tbsp. melted butter
1 tsp. vanilla

Beat ingredients together with mixer. Spread on cookies. Cut into serving pieces with sharp knife while still warm.