This fresh, tart cocktail is the perfect way to unwind from the holiday stress. Once the presents are wrapped and the food is ready to go, then you know: a Santa Clausmopolitan is in order.  If cosmos are your go-to drink, then you’ll be able to make these clausmopolitans in your sleep (really, they couldn’t be simpler to make). Keep reading on for everything you need to know about making these festive drinks that are sure to keep you merry and bright all season long: