What is the key sweetening component of the Kingston Club cocktail?

The key sweetening component of the Kingston Club cocktail is Drambuie honey blended whisky. Drambuie is a liqueur that is not only sweet but also adds a rich, complex flavor profile to cocktails. It combines scotch whisky with honey and herbal ingredients, which enhance the drink's overall taste, making it a pivotal component in many recipes, including the Kingston Club.

While other ingredients like fresh lime and pineapple contribute to the cocktail's flavor and acidity, they do not provide the same level of sweetness as Drambuie. Fernet Branca, although used in some cocktails, is primarily bitter and aromatic, contrasting with the sweet essence that Drambuie brings. This unique combination of sweet and herbal notes makes Drambuie the ideal choice for sweetening the Kingston Club cocktail, creating a balanced and flavorful drink.