Combine The Beef, 1/2 Cup Coconut, Cilantro, Egg, Lime Juice, Worcestershire Sauce, 1 Tablespoon Cream Of Coconut, Soy Sauce, And 1 1/2 Teaspoons Salt In A Bowl Until Well Mixed. Form Into 4 Patties, And Set Aside. Stir Together The Mayonnaise With 2 Teaspoons Of Cream Of Coconut And 1 Tablespoon Of Cilantro; Set Aside. Heat The Vegetable Oil In A Skillet Over Medium Heat. Stir In 1 Cup Of Coconut And 1/2 Teaspoon Salt. Cook And Stir Until The Coconut Has Turned Golden Brown. Drain On A Paper Towel-Lined Plate And Set Aside. Preheat An Outdoor Grill For Medium-High Heat, And Lightly Oil Grate. Cook The Burgers On The Preheated Grill To Your Desired Degree Of Doneness, About 4 Minutes Per Side For Medium-Well. Spread Both Cut Sides Of The Hamburger Buns With The Cilantro Mayonnaise. Place The Cooked Burgers On The Bottom Buns, Sprinkle With The Toasted Coconut, And Serve.