Magic Bars

½ cup butter or margarine

1½ cup graham cracker crumbs

1 (14 ounce) can sweetened condensed milk

6 ounces semi-sweet chocolate chips

1⅓ cup sweetened coconut flakes

1 cup chopped walnuts

Preheat the oven to 350 degrees (325 for glass dish).  In a 13 by 9 inch baking pan, melt butter in the oven while it heats up.  Sprinkle graham cracker crumbs over the butter. Pour the sweetened condensed milk evenly over the crumbs.  Top with remaining ingredients and press down.  Bake for 25 to 30 minutes or until lightly browned.  Cool.  Chill if desired to speed up the cooling process.  Cut into bars once completely cooled.   Store loosely covered at room temperature.