1 2/3 c. (1 sealed pkg.) graham crackers, crushed
2 sticks butter, melted
2 2/3 c. powdered sugar
1 c. peanut butter
1 pkg. (12 oz.) chocolate chips

Mix first 4 ingredients and spread in jelly roll pan. Melt chocolate chips and spread over top. Refrigerate until set. Cut into squares. Freezes well.