Make the spiced cranberry juice per directions from this post and keep it in the refrigerator until needed.
In a copper Moscow Mule mug, add spiced cranberry juice, vodka, and fresh lime juice.
Give a quick stir.
Top with ginger beer.
Garnish with fresh herbs (I used sage since I love how it pairs with the cranberry juice!)
Notes
Don't forget to plan ahead for the spiced cranberry juice! The cranberry juice steeps with the spices for about 45 minutes and then must cool completely.