Add the apple juice, orange juice, brown sugar, cinnamon, ginger, nutmeg, and orange zest to a medium pot over high heat. Once the mixture comes to a boil, reduce the heat to low and allow the mixture to simmer for 30 minutes.
6 cups apple juice, 1½ cups orange juice, ¼ cup brown sugar, 2 cinnamon sticks, ¼ teaspoon ground ginger, 2 teaspoons orange zest, ¼ teaspoon ground nutmeg