Mexico City’s party drink—a combination of fresh espresso and the Spanish liqueur Licor 43—can be found throughout the city in cantinas, coffeeshops and cocktail bars. At Cicatriz, an all-day café in the capital city, Scarlett and Jake Lindeman serve one of the best versions in town. “Frothy, caffeinated, and sweet—it’s like an adult milkshake,” says Lindeman.