Invented by Sam Ross at Milk & Honey in New York, circa 2008, the Sunflower is pretty much a variation on a Corpse Reviver No. 2 in which elderflower liqueur replaces an aromatized wine like Cocchi Americano. As usual, the recipe contains only ordinary pantry staples, but you’ve got a safety valve: If you’re out of St. Germain elderflower liqueur just reach into the fridge for some Cocchi Americano (you really should keep an opened bottle there) and make a Corpse Reviver No. 2.