We recommend using a good-quality California or Spanish sparkling wine for this punch. Both are widely available and less expensive than Champagne.

Ingredients

　　1 (750-ml) bottle chilled sparkling white wine

　　3 cups fresh blood-orange juice (from 12 blood oranges)

　　2/3 cup light or amber rum (not dark)

　　Garnish: 1 navel orange, halved lengthwise, then sliced crosswise

　　Stir together all ingredients in a pitcher and serve over ice.

　　Cooks' note:

　　Blood-orange juice can be squeezed 1 day ahead and chilled, covered.