Place mixture in a metal container and place into the freezer.
After one hour, with a fork, scrape the mixture and set back into the freezer for another 2 hours.
Use the fork to scrape the mixture one more time to form flakes of watermelon ice.
To serve, place in a clear glass and top with a piece of mint. Serve immediately!
Recipe by Grilling Outdoor Recipes powered by Bull Outdoor Products at https://blog.bullbbq.com/july-4th-slow-cooked-bbq-rib-sandwich-with-potato-salad-watermelon-granita/