Stir ∙ 3 min ∙ 14.9% ABV ∙
The Diplomat is a low-ABV, vermouth-forward stirred cocktail of dry and sweet vermouth with a touch of maraschino liqueur and orange bitters. Delicate and wine-like, with a light almond-cherry sweetness threading through herbal, bittersweet vermouth and a dry, citrus-bitters finish — a gentle aperitif for before dinner.
The Diplomat's earliest documented appearance is in Belgian bartender Robert Vermeire's 1922 book Cocktails: How to Mix Them, where it was spelled "Diplomate." Vermeire, who tended bar in London at the Royal Automobile Club, the Criterion, and the Embassy Club, noted that the drink was well known in the French Diplomatic Service, which is the likely source of its name. The cocktail later gained wider circulation after appearing in Harry Craddock's 1930 Savoy Cocktail Book and Patrick Gavin Duffy's 1934 Official Mixer's Manual, cementing it as a low-alcohol, vermouth-forward aperitif. No inventor beyond its documentation by Vermeire is credited in the sources, and no earlier printed version has been found.