The Other Side Of The Tracks Cocktail
This drink--a variation on the margarita--began as a method to start going through a case of Fee's bitters given to me by master bartender (and Shimmy Shack owner) Jimmy Collings. One of the bitters was grapefruit; it occurred to me that this would be good with a shot of tequila over crushed ice. Bingo! I played with the idea again and again, and this is the best thing I've come up with so far.