2 cups frozen Wild Blueberries, slightly thawed
8 cups apple cider
1/2 cup firmly packed light brown sugar
1 (1-inch) piece peeled fresh ginger
1 tablespoon whole cloves
1 tablespoon whole allspice
1 tablespoon cardamom pods
2 cinnamon sticks
1 vanilla bean, split
Garnish: Wild Blueberries, thawed
Pulse Wild Blueberries in a blender or food processor until chopped, stopping to scrape down sides. Combine processed Wild Blueberries and remaining ingredients in a large saucepan. Bring just to a boil; reduce heat to low and cook for 2 hours. Strain cider, discarding pulp and spices. Serve warm.