1 - Angel Food Cake (bought or baked)
Frosting:
1 can Condensed Milk
1/3 cup Key Lime Juice
(mix them together with a wire wisk)
1 - 8oz carton Cool Whip
Coconut (sprinkled on top and sides)
Cut your cake into 3 layers and spread frosting between layers. Sprinkle with coconut on top and sides