1/2 cup butter
1 1/2 cups graham cracker crumbs
1 (14 ounce) can sweetened condensed milk
2 cups semisweet chocolate chips
1 cup peanut butter chips
Preheat oven to 350 degrees F.
Melt butter over low heat.
Pour butter into 13 x 9 inch pan. Sprinkle graham cracker crumbs over butter.
Pour condensed milk over crumbs. Sprinkle chocolate and peanut butter chips over milk mixture and press down firmly.
Bake 25 to 30 minutes.