Preheat oven to 350F. Pour margarine into l3 x 9 inch baking dish. Sprinkle graham cracker crumbs unevenly over margarine. Sprinkle coconut, then add both bags of chips over crumbs. Then sprinkle nuts; drizzle condensed milk evenly over ingredients. DO NOT STIR. Bake for 35-40 minutes. Cool and cut into bars.
Cajun Country -- New Iberia, Louisiana