Mushroom Velvet Soup
["1/2 lb. mushrooms, sliced", "1 medium onion, coarsely chopped", "1/3 c. parsley, chopped", "4 Tbsp. butter or margarine", "1 Tbsp. flour", "1 (4 to 5 oz.) can regular strength beef broth", "1/2 pt. (1 c.) sour cream"]
["In a wide frying pan over medium heat, cook mushrooms, onion and parsley in butter until mushrooms are soft and pan juices have evaporated (about 5 minutes).", "Stir in flour and cook 1 minute to brown lightly.", "Slowly stir in broth; bring to a boil, stirring. In a blender or food processor, puree soup with sour cream, a portion at a time, until smooth.", "Reheat, don't boil!"]
["mushrooms", "onion", "parsley", "butter", "flour", "regular strength beef broth", "sour cream"]