Midnight Martini is a mix of Coffee Flavored Vodka, Coffee Flavored Liqueur, and Cinnamon Syrup. The coffee flavored vodka gives the Midnight Martini a sweet and slightly nutty taste while the coffee flavored liqueur adds a layer of bitterness to the drink. The cinnamon syrup rounds out the flavor of the Midnight Martini and gives it a warm, spicy finish. The history of the Midnight Martini is unclear, but it is believed to have originated in the United States in the early 21st century. The drink gained popularity in Europe and Asia in the late 2000s and has become a staple of many bar menus around the world. So go ahead and give it a try, we think you'll be glad you did.