Put simply, a coffee liqueur is an alcoholic drink with syrup-like qualities that has been generally distilled down from coffee beans. Remarkably, coffee liqueur drinks have been around since the 16th century, originally kicking off with a rum base topped with coffee and vanilla flavourings. At its core, the drink is comprised of roasted coffee beans and their powder, sugar (white or brown), vanilla syrup, espresso, and alcohol. The roasted coffee is steeped along with the sugar and other ingredients in the alcohol to produce the coffee liqueur.