How to Make It
Preheat the oven to 325°F, and grease a half sheet pan (18 x 13 inches) with edges with floured baking spray.
Melt the butter in a large bowl in the microwave.
Add the graham cracker crumbs to the melted butter and mix well by hand.
Once the graham cracker crumbs are moistened by the butter, press the mixture into the bottom of the prepared pan.
Layer the shredded coconut, butterscotch chips, chocolate chips, and pecans over the top.
Pour the sweetened condensed milk over the entire pan. Do not mix.
Bake for 35 minutes.
Cool completely before cutting into 1-inch squares.