Preheat oven to 350℉ and line a 9x13-inch pan with parchment paper.
Add the graham crackers to a food processor and process until they are fine crumbs.
12 full graham cracker sheets (14 ounces)
Add the melted butter and sugar and stir to combine.
1/2 cup butter, 1/4 cup sugar
Press the graham cracker mixture into the bottom of the prepared pan; bake for 8 minutes.
Stir together the coconut flakes and sweetened condensed milk.
8 ounces sweetened coconut flakes, One 14 ounce can sweetened condensed milk
Spoon over the baked graham cracker crust and carefully spread to an even layer.
Bake an additional 12-15 minutes or until the coconut layer is golden brown in places.
Sprinkle the chocolate chips on top; bake for 1 minute, then carefully spread until smooth.
1 1/2 cups dark chocolate chips (or semi-sweet chocolate chips)
Let cool then cut into bars.