When you're looking for a classic cocktail to enjoy before a meal, few are as satisfying as the famous Negroni. The Negroni is a popular Italian cocktail, made of one part gin, one part vermouth rosso, and one part Campari, garnished with orange peel. It is considered an apéritif. A properly made Negroni is stirred, not shaken, and built over ice in an old fashioned or ‘rocks’ glass and garnished with a slice of orange.