Cranberry Shrub
["1 (46 oz.) cranberry juice, chilled", "1 (46 oz.) pineapple juice, chilled", "1 qt. 7-Up", "lemon, orange or pineapple sherbet"]
["When ready to serve combine juices well; pour in punch bowl. Top with scoops of sherbet.", "Yields 3 1/2 quarts."]
["cranberry juice", "pineapple juice", "lemon"]