Combine two 750-ml bottles of dry sparkling white wine, 1 1/2 cups Cointreau, 1 cup apple juice, and 1/2 cup strained orange juice in a large container. Add thin slices of orange, green apple, and red apple to mixture. Cover and chill for 1 hour or up to 4 hours. Add ice and fresh mint sprigs and serve.
Originally published in Ladies' Home Journal, December 2008.