Rainbow Punch
["1 (4 serving size) pkg. lemon, lime, orange, raspberry or strawberry flavor gelatin", "2 c. lemon juice concentrate", "1 1/2 c. sugar", "2 c. boiling water", "1 (46 oz.) can pineapple juice, chilled", "1 qt. sherbet (any flavor)", "1 (32 oz.) chilled club soda"]
["In medium bowl, dissolve gelatin and sugar in boiling water; set aside.", "In large punch bowl, combine pineapple juice, real lemon juice and gelatin mixture.", "Chill.", "Just before serving, add sherbet and club soda.", "Makes 3 1/2 quarts."]
["lemon", "lemon juice concentrate", "sugar", "boiling water", "pineapple juice", "sherbet", "club soda"]