Preheat oven to 350°F. Line a 13 x 9 inch baking pan with heavy duty aluminum foil leaving 1 1/2 inch overhang. Butter foil set aside.
In a medium bowl, toss together graham cracker crumbs, butter and granulated sugar. Press firmly onto the bottom of the pan. Bake for 8 minutes
Sprinkle the hot crust evenly beginning with 1/2 (1 cup) chocolate chips, pecans and coconut. Top with reserved 1 cup of chocolate chips.
Drizzle sweetened condensed milk evenly over toppings. Return to the oven and bake for 25-30 minutes or just until lightly golden and the edges are bubbly.
Cool in the pan on a cooling rack to warm. Remove from pan using aluminum foil overhang. Gently pull back foil from sides. Cool completely.
Once cooled, use a sharp knife to cut into squares and enjoy.