Fernet Branca

A tasty aperitif originally made in Italy, Fernet Branca is a thick, black bitters made with quinine.

Although this liqueur goes well over ice or with gin, it's often prescribed as a drink to prevent hangovers. According to Esquire's Handbook for Hosts from 1949, when mixed with rye, a few dashes of Pernod, and a lump of ice, Fernet Branca makes for an ideal pick-me-up.