A Prohibition-era classic born in Havana's legendary Sloppy Joe's Bar, this cocktail balances tropical warmth with European sophistication. The Jamaican rum provides a funky backbone, tempered by the herbal dryness of vermouth and brightened by fresh lime. Grenadine and curaçao add just enough sweetness and citrus depth to round out the edges, resulting in a drink that's tart, lightly fruity, and deceptively easy to drink.