An urbane, classic cocktail that was the signature drink of Erskine Gwynne, the socialite grand-nephew of railroad tycoon Cornelius Vanderbilt, who, in the late 1920's edited a monthly magazine in Paris (think The New Yorker) called The Boulevardier. A recipe for the drink first appeared in mixologist Harry McElhone's 1927 bar guide Barflies and Cocktails (Harry relocated from the Plaza Hotel in New York City to Paris because of prohibition). The elixir is similar to both a Negroni and the Old Pal except Bourbon replaces the Gin in a Negroni and Sweet Vermouth replaces the Dry in an Old Pal. To make a Boulevardier, combine 2 oz. Bourbon, 1 oz. Campari, and 1 oz. Sweet Vermouth in a tall mixing glass filled with ice. Stir until cold and strain into a chilled coupe glass. Garnish with an orange peel or cherry. Repeat as necessary.