Active Time

　　15 minutes

　　Total Time

　　4 1/4 hours

　　

Ingredients

Makes about 4 cups or 4 servings

　　2 tablespoons chopped peeled fresh ginger

　　1/2 cup superfine granulated sugar

　　3/4 pounds blueberries (2 1/2 cups), thawed if frozen

　　3/4 cup water

　　2 teaspoons fresh lime juice

　　

Step 1

Finely grind ginger with sugar in a food processor. Add blueberries and purée until smooth. Force purée through a fine sieve into an 8- to 9-inch baking pan, pressing hard on solids (discard solids). Stir in water and lime juice.

　　

Step 2

Freeze, stirring and crushing lumps with a fork every hour, until evenly frozen, about 4 hours total. Scrape with a fork to lighten texture, crushing any lumps.

　　

Step 3

Serve immediately or freeze, covered, up to 3 days (rescrape to lighten texture again if necessary).