1 cup melted butter
2 cups graham crackers (traditional or gluten-free) crumbs
2 cups confectioners sugar
1 cup peanut butter
1 1/2 cup semisweet chocolate chips
1. Mix everything but the chocolate chips until well combined. Spread the mixture into a 9x9 or larger pan.
2. Melt the chocolate chips over a double boiler until smooth, and pour over the peanut butter mixture. Refrigerate the mixture until solidified.