In a large pot over medium high heat combine 4 cups of the apple cider with all of the whole spices and ginger. Bring to a slow simmer and let simmer for about 15 minutes until the cider has reduced in half. Should yeild about 2 cups.
Strain the spices and ginger (you can reserve the cinnamon, star anise and ginger to use as garnishes). Let the spiced cider cool and add to the rest of the apple cider, along with the Cointreu and stir well to combine. Optional to chill in a a glass pitcher in the fridge.
Serve over ice in a tall glass filled 3/4 of the way with spiced apple cider and top off remaning 1/4 with prosecco, champagne, or sparkling apple cider & enjoy!