Adding rum or vodka to this plum limeade makes a delicious cocktail. With or without alcohol, the limeade should be served immediately, since it will quickly darken if left standing.

Ingredients

　　1 lime, cut into 6 wedges and seeded

　　1 lb ripe red or black plums, quartered and pitted

　　1 1/2 cups crushed ice

　　1 cup cold water

　　2/3 cup superfine granulated sugar

　　Garnish: plum and lime slices and fresh mint sprigs

　　Blend lime wedges (including peel) in a blender on high speed 10 seconds. Add plums, ice, water, and sugar and blend until plums are puréed, about 15 seconds. Pour through a very fine sieve into a pitcher, pressing on solids. Stir limeade and serve immediately over ice.