Creating the Autumn Spiced Mocktail is simple when you follow these clear steps:

1. Mix Juices: In a large pitcher, combine the apple cider, orange juice, and lemon juice. Stir well.
2. Add Spices: Sprinkle in the ground cinnamon and nutmeg. Stir again to ensure the spices are evenly distributed.
3. Incorporate Vanilla: Add in the vanilla extract for an extra layer of flavor. Mix thoroughly.
4. Chill the Mixture: Refrigerate the juice mixture for about 5-10 minutes to enhance the flavors.
5. Serve with Fizz: Just before serving, pour in the sparkling water to give it a refreshing fizz. Stir gently to combine.
6. Garnish: Serve in glasses filled with ice, and garnish with cinnamon sticks, apple slices, and orange slices for a festive touch.

This straightforward method will result in a wonderfully flavorful Autumn Spiced Mocktail perfect for any occasion.