4 slices white cheddar cheese
4 slices watermelon about the same size as the burgers, seeded
1 tablespoon ground pepper
4 toasted buns
any other condiments you like
Grill the hamburgers almost to desired doneness but 30 seconds before they are done, place a cheese slice atop each burger. Place the watermelon slices on the grill and dust with the pepper to taste. Assemble the burgers on the buns with a slice of warmed watermelon on each on top of the cheese.