1 (32 ox.) bottle chilled cranberry juice
1 qt. chilled orange juice
1/2 c. chilled lemon juice
1 c. sugar
1 (25.4 oz.) bottle Chablis or other chilled white wine
2 (25.4 oz.) chilled bottles champagne

Combine cranberry juice, orange juice, lemon juice, and sugar. Stir until sugar dissolves. Add wine and pour over ice in punch bowl. Stir in champagne just before serving. Garnish with orange slices (optional).