Cranberry-Raspberry-Pineapple Punch
["1 (48 oz.) can pineapple juice, chilled", "1 (8.5 oz.) container cranberry-raspberry juice concentrate*", "1 liter seltzer or 1 bottle champagne, chilled"]
["Combine all ingredients in a 3-quart pitcher or punch bowl. Serve over ice.", "Makes 11 cups."]
["pineapple juice", "cranberry-raspberry juice", "seltzer"]