Bitters are a concentrated infusion of herbs, spices and other flavoring agents in an alcohol solution. They are used as a flavor additive in cocktails and are also considered a digestive. Vodka is a distilled liquor made from grains such as wheat, rye or barley. It is often made from potatoes or sugar beets.

There are many different cocktails that can be made with bitters and vodka. Some of the most popular include the Manhattan, the Old Fashioned and the …