1 cup melted butter
1 cup peanut butter
2 1/2 cups powdered sugar
2 1/2 cups crushed graham cracker crumbs
1 (12 oz.) package of milk chocolate chips

Mix melted butter and peanut butter together. In separate bowl, mix powdered sugar and graham crackers together. Then, add both mixtures together. Pat mixture into a buttered 9 x 13-inch pan. In a separate bowl, melt chocolate chips and spread over peanut butter mixture. Refrigerate just until firm.