Preheat your oven to 350 degrees Fahrenheit.
Use a food processor to crush your graham crackers. Alternatively, you can put them in a sealable plastic bag (like Ziplock) and crush them with a rolling pin. Combine the graham cracker crumbs and butter right in your food processor. 1/2 cup unsalted butter, 1 1/2 cups graham cracker crumbs
Press the combined butter and crumbs into a 9 by 13 inch baking pan that is lined with parchment paper. (See the photo in the post.) Pour the sweetened condensed milk over the crumb crust completely. If you need to spread it, do so carefully.
14 liquid ounces sweetened condensed milk
Sprinkle the chocolate chips and butterscotch chips over the sweetened condensed milk layer.
1 cup chocolate chips, 1 cup butterscotch chips
Add the shredded coconut and then the pecans. Very gently press down.
1 1/3 cups shredded sweetened coconut, 1 cup chopped pecans
Bake for 18 - 23 minutes on the middle shelf of your oven, rotating halfway through, until the middle of the pan just begins to turn golden brown.