Add apple cider, cinnamon simple syrup, vodka, and lime juice to a copper mug. Stir to combine and top with ice.
Top with ginger beer. Garnish and serve.
notes
*This is a great cocktail to serve to a crowd! To make 8 servings, you will need 3 cups apple cider, 1 cup cinnamon simple syrup, 2 cups vodka, 1/2 cup lime juice, and 3 cups ginger beer. Mix together everything except the ginger beer in a pitcher and place in the fridge until ready to serve. Top with ginger beer and over ice!