Cheers to Mardi Gras and this King Cake Martini! The base of this drink is homemade cinnamon-infused vodka, which is made when cinnamon sticks are placed in a jar with vodka for 5-7 days. When the vodka is cinnamon-y, mix with hazelnut liqueur, white crème de cocoa, coffee liqueur and club soda. This Carnival cocktail looks and tastes like a traditional king cake. What better way to celebrate Mardi Gras than by sipping on a King Cake Martini?