Fernet & Jerry

When John Gertsen learned that Italian immigrants sometimes mix an obscure Sicilian bitters with eggnog as a kind of tonic, he had to try it. He substituted widely available Fernet-Branca for the bitters. The result? "The rich flavor of the egg takes the edge off the Fernet-Branca and the heat makes it smell heavenly." Slideshow: Comforting Warming Drinks