A huge category, and one in which many classics reside. Sours can be made with any other strong liquor of choice. Sours taste very much of their base liquor; a short, sharp, punch type drink consisting of 2 parts spirit, 1 part sour (lemon or lime juice) and half part of sweet (syrup, liqueur, sugar). Bitters and egg white are optional.
Sours are shaken drinks and may be served straight-up or on the rocks.