From the Comfort of Cooking
- 1/3 cup sugar
- 1/3 cup water
- 4 pounds seedless watermelon, cut into 1-inch cubes (about 5 cups)
- 2 Tablespoons fresh lime juice
Make a simple syrup by heating sugar and water over high heat, stirring until all the sugar has dissolved. Let cool. Place the watermelon and lime juice in a heavy-duty blender and process until smooth. Add simple syrup to the puree and pulse until combined.
Pour liquid into a 9 x 13-inch baking dish. Freeze, stirring and scraping with a fork every hour, until all of the liquid has frozen. This should take about 4 hours.