Though the cocktail menu at Heaven's Dog is always fantastic (and we dare say more notable than the food, though Charles Phan recently took over the kitchen at his Chinese restaurant after the original chef departed), they can't take credit for the Vesper. That credit goes to Ian Fleming, author of the James Bond books. The drink is first mentioned in Casino Royale, the very first Bond novel, and as The Spirit World tells us, "It is said that Ian Fleming designed this drink himself, with the help of bartenders at Dukes hotel in London. He apparently was fairly proud of it, but unfortunately it never shows up again."
We should also note that this is Brock's favorite cocktail, and can be ordered any number of places since most decent bars should carry all three ingredients.
3 oz. gin
1 oz. vodka
1/2 oz. Lillet blanc
Shaken, of course, not stirred, and served up.