Double-decker Bars

Description
This is a recipe I obtained from an Estate sale. I obtained it when I purchased the family collection from the Hartman Estate in Arlington, Texas in 1984.
 * Contributed by Catsrecipes Y-Group

Ingredients

 * ½ cup butter
 * 1½ cups graham cracker crumbs
 * 14 ounce can sweetened condensed milk
 * 12 ounce package milk chocolate chips
 * 1 cup peanut butter chips

Directions

 * 1) Preheat oven to 350°F.
 * 2) Melt butter in a rectangular baking pan then sprinkle crumbs evenly over the putter.
 * 3) Pour milk over crumbs then to with chips pressing down firmly.
 * 4) Bake for 30 minutes.
 * 5) Cool and cut into bars.