Asparagus Cress Soup

3/4 cup chopped green onions
1/4 cup butter, cubed
3 tablespoons all-purpose flour
2-1/2 cups chicken broth
1-1/2 pounds fresh asparagus, trimmed and cut into 1-inch pieces
1/2 bunch watercress, stems removed (about 1 cup, lightly packed)
1-1/2 cups half-and-half cream
3/4 teaspoon salt
1/4 teaspoon white pepper
1/8 teaspoon cayenne pepper
Sour cream

In a large saucepan, saute onion in butter 3-4 minutes or until soft. Stir in flour to form a smooth paste. Cook for 2 minutes. Gradually stir in broth and bring to a boil. Add asparagus and watercress; cover and simmer 5-7 minutes or until vegetables are tender. Cool.

Puree soup in a blender or food processor until smooth. Return to saucepan; stir in cream. Heat on low until cooked through (do not boil). Season with the salt, white pepper and cayenne. Serve with a dollop of sour cream. Makes 6 servings.