Thaw raspberries at room temperature; do not drain. Place raspberries with orange juice and lemon or lime juice in blender. Add sugar. Cover and process until smooth. To remove raspberry seeds, pour mixture through a fine sieve; transfer to 8 L / 2-quart pitcher. Stir in champagne, sparkling white wine or pineapple juice. Serve over ice. Makes 12 (150 mL/5 oz servings)
