Melt butter in a 13x9 inch pan. Spread graham cracker crumbs over the bottom of the pan. Spread the chocolate chips in a layer over crumbs, then the pecans in a layer over chocolate. Pour condensed milk over all this. DO NOT STIR at any time. Bake at 180ºC F for 30 minutes. Cool and cut into squares. Margaret Garland DFYX18A ----