Chilled Cucumber Soup

Description
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Ingredients

 * 1 large English cucumber peeled, seeded and chopped
 * ¼ cup chopped fresh dill
 * 3 Tbs. fresh lemon juice
 * 1 cup vegetable stock
 * 4 cups plain low- or nonfat yogurt
 * 2 scallions, trimmed and chopped (white part only)
 * salt and freshly ground pepper to taste
 * lemon slices and dill sprigs for garnish

Directions

 * Combine ingredients in blender and purée until fairly smooth. Adjust seasonings to taste. Cover tightly and chill at least 3 hours. Garnish with dill sprigs and lemon slices before serving.