Hello Dolly Bars

1/2 cup unsalted butter
1 cup graham cracker crumbs
1 cup semisweet chocolate chips
1 cup butterscotch chips
1 cup coconut
1 cup chopped walnuts
1 can (15 ounces) sweetened condensed milk

Melt the butter; mix in graham cracker crumbs. Pat crumb mixture in a 9-x13-inch baking pan. Sprinkle the remaining ingredients over the crumbs in order given, in layers. Drizzle the sweetened condensed milk over all. Do NOT stir. Bake at 350° for about 25 minutes. Cool and cut into bars.

Other Options: peanut butter chips, or mini marshmallows