The boulevardier cocktail is an alcoholic drink composed of whiskey, sweet vermouth, and Campari. Its creation is ascribed to Erskine Gwynne, an American-born writer who founded a monthly magazine in Paris called Boulevardier, which appeared from 1927 to 1932. The drink was also popularized after it was included in Harry MacElhone’s 1927 book "Barflies and Cocktails."
Add bourbon, Campari and sweet vermouth into a mixing glass with ice and stir until well-chilled.
Strain into a rocks glass over fresh ice.
Garnish with an orange twist and serve.