Ingredients

• 2 cups fresh pink grapefruit juice (from 2-3 grapefruits)
• 1/2 cup St-Germain (elderflower liqueur)
• 1/4 cup Campari
• 1 750-milliliter bottle chilled sparkling wine

Instructions

1. Combine grapefruit juice, St-Germain, and Campari in a large pitcher. Cover and chill until cold, about 2 hours.
2. Divide grapefruit mixture among glasses and top off with sparkling wine.
3. DO AHEAD: Grapefruit mixture can be made 1 day ahead. Keep chilled.