1 c. butter
1/3 box graham crackers
1 c. peanut butter
1 box powdered sugar
1 pkg. MILK chocolate chips
2 tbsp. shortening

Mix together. Put in a 9 x 13 inch cake pan that has been greased with butter (pat down). Melt together chocolate chips and shortening; spread over peanut butter mixture. Let set. Serve. Store in refrigerator.