The base spirit in a Negroni cocktail is gin. A classic Negroni combines gin with equal parts sweet red vermouth and Campari, creating a bitter, aromatic aperitif that is usually stirred or built over ice and finished with an orange garnish.
Gin supplies the drink’s alcoholic backbone and its characteristic juniper and botanical notes. Vermouth contributes sweetness, wine-based depth, and additional herbs, while Campari provides the vivid red color and pronounced bitter-orange flavor. The traditional equal-parts structure is often written as a 1:1:1 recipe, although modern bars sometimes adjust the proportions to make the cocktail drier, sweeter, or more spirit-forward.
The Negroni is often linked to Count Camillo Negroni and a 1919 request to strengthen an Americano by replacing its soda water with gin. That origin story is famous but not firmly established; documentary evidence suggests related gin, vermouth, and Campari drinks appeared in French and other cocktail books before the modern version became standardized. Common substitutions create different drinks: whiskey makes a Boulevardier, while vodka produces a Vodka Negroni or Negroski.