Cold Cucumber Soup

This calls itself a cold soup, but sounds exactly like a smoothie to me (and all the photographs even had it in glass not a soup bowl). What's in a name, as long as it tastes great? And it did. Recipe adapted for several similar.

Cut 1 large cucumber into small pieces. Peel 4-5 cloves of ginger. Blend the cucumber and garlic with 1/2 cup low fat yogurt, salt and freshly ground pepper till smooth. Add water to dilute, if desired (I didn't).
Garnish with small pieces of radish. Serve chilled.