A pisco sour is an alcoholic cocktail of Peruvian origin that is typical of the cuisines from Peru. The drink's name comes from "pisco", which is its base liquor, and the cocktail term "sour", in reference to sour citrus juice and sweetener components. The Peruvian pisco sour uses Peruvian "pisco" as the base liquor and adds freshly squeezed lime juice, simple syrup, ice, egg white, and Angostura bitters. Other variants of the cocktail include those created with fruits like pineapple or plants such as coca leaves.