This flaky, snowy treat is so easy to make. You can use any fruit that’s in season, but watermelon is our go-to during the summer. Watermelon-Lime Granita Ingredients 6 cups chopped seedless watermelon ¼ cup sugar ¼ cup fresh lime juice ½ teaspoon kosher salt ⅛ to ¼ teaspoon cayenne pepper 1 tablespoon lime