Heat oven to 350°F. Spray 13×9-inch baking pan with no-stick cooking spray.
Throw the graham crackers in the food processor and give them a whirl until finely crushed.
In a mixing bowl, combine the graham cracker crumbs and melted butter. Press crumb mixture firmly into bottom of prepared pan.
Layer the nuts, semi-sweet chocolate chips, white chips and then coconut over the crust.
Pour sweetened condensed milk evenly over the top of everything. (Don’t worry about the condensed milk sitting on top of all the ingredients, this is correct! It will melt down through all the ingredients during the baking process.)
Bake 25 to 30 minutes or until lightly browned.
Cool on a wire rack for a couple of hours. Cut into bars.
Note: I love to sprinkle some edible dried rose petals over these before serving because they really just make them so beautiful, but don’t change the flavor at all.