In the Killer Rabbit of Caerbannog—named after the character from Monty Python (“Rabbits, English, carrots, you get the deal”)—Giuseppe Gonzalez of New York’s brand-new Suffolk Arms contrasts Scotch, a quintessential winter spirit, with spring-ready vegetable juices and that staple of warm weather and lawn parties: Pimm’s. The result is boozy and earthy, yet refreshing: the cocktail equivalent of a crisp trench coat.