Which classic cocktail is made with gin, vermouth, and an olive?

The classic cocktail made with gin, vermouth, and an olive is the Martini. This cocktail is recognized for its simplicity and elegance, often associated with sophisticated drinking culture. The Martini typically consists of dry gin and dry vermouth, garnished with an olive or a lemon twist, creating a balanced and aromatic beverage.

The use of vermouth, a fortified wine, adds a depth of flavor that complements the botanical notes of the gin. The garnish of an olive not only enhances the visual appeal but also adds a briny flavor that rounds out the cocktail.

In contrast, the other options represent different types of cocktails with distinctly different ingredients and flavor profiles. The Old Fashioned, for example, is a whiskey-based drink that focuses on the sweetness of sugar and the aromatic presence of bitters. The Margarita is a tequila-based cocktail typically mixed with lime juice and orange liqueur, served with salt on the rim. The Negroni, on the other hand, combines gin, vermouth, and Campari, creating a bittersweet profile. Each of these cocktails showcases unique flavors and ingredients, making the Martini stand out as specifically made with gin, vermouth, and an olive.