Here's a delightfully fresh summer granita recipe, with watermelon and subtle hints of rose, topped with zingy grapefruit! the steps are super simple and easy, and it would greatly help if you had help in watching the 30-mins mark to fork across the granita for a few hours. What works even better for this granita is making a vodka or gin based cocktail, perhaps with a lash of rosemary bitter and a slice of grapefruit!