This is probably the easiest cookie recipe there is, perfect for bake sales and holiday gifts.
1-1/2 cups graham cracker crumbs (or 14 whole graham crackers crushed)
6 tablespoons unsalted butter, melted
12-ounce package semi-sweet chocolate chips
12-ounce package butterscotch chips
2 cups walnut halves
2 cups shredded sweetened coconut
14-ounce can condensed milk
Preheat the oven to 350°F. Butter a 9x13-inch pan.
Mix the graham cracker crumbs with the melted butter and press onto the bottom of the pan. Pour the chocolate chips, butterscotch chips, and walnuts on top, distributing evenly. Sprinkle the coconut over the top. Drizzle the condensed milk evenly over everything.
Bake about 20 minutes, until some of the coconut develops toasty tips and the condensed milk along the edges starts to caramelize. Cut the hot cookies into squares no bigger than an inch and a half (they're very sweet), which will allow for easier cutting later. Let cool completely and refrigerate until ready to serve. Recut along the lines.