Preheat oven to 350°F (180°C). Line a 9×13 baking pan with parchment paper, leaving some over hanging on the sides for easy removal from the pan later.
Combine the graham cracker crumbs and melted butter in a medium sized bowl until well combined and all crumbs are moistened. Press the mixture into the bottom of the pan in an even layer.
Sprinkle the chocolate and butterscotch chips in an even layer on top of the crust. Sprinkle the nuts and coconut evenly over the top.
Drizzle the sweetened condensed milk evenly over the toppings.
Bake for 25-30 minutes or until lightly brown on top. Cool completely, then cut into squares.
