Makes 16 squares.

1/2 cup (1 stick) butter, melted
1 cup graham cracker crumbs
1 cup sweetened flaked coconut
1 cup semisweet chocolate chips
1 cup peanut butter chips
1 (14 ounce) can sweetened condensed milk
1 cup chopped walnuts

Preheat the oven to 350 degrees F.

Pour the melted butter evenly over the bottom of an 8-inch square baking pan. Spread the graham cracker crumbs evenly over the butter.

Layer with the coconut then the chocolate chips followed by the peanut butter chips. Drizzle the sweetened condensed milk over the top and sprinkle with the walnuts.

Bake for 30 minutes, or until lightly browned. Cool, then cut into bars.