Maple Boulevardier

Bourbon, sweet vermouth, Campari, and maple syrup — the 1927 Boulevardier with maple replacing sugar, the caramelized sotolon adding autumnal depth.

The Maple Boulevardier is a seasonal variation on a Paris expatriate cocktail from the 1920s that adapts its American whiskey base to one of North America's most distinctive regional sweeteners. The original Boulevardier was created by Erskine Gwynne, an American writer and socialite who published a literary and social magazine called The Boulevardier in Paris from 1927 to 1932, and appeared in Harry McElhone's Barflies and Cocktails (1927). The drink's formula — bourbon or rye, sweet vermouth, and Campari in equal parts, essentially a Negroni built on American whiskey rather than gin — already possessed a warmth and weight that distinguished it from its Italian counterpart. Replacing the conventional sugar element with maple syrup leans into the North American character of the base spirit and adds an earthy, caramelized sweetness that works particularly well with bourbon's barrel-derived vanilla and caramel notes. Pure maple syrup's aromatic compounds — including sotolon, the fenugreek-like lactone that defines maple's specific sweetness — interact with the Campari's bitter orange in a different way than refined sugar does, adding depth and a faintly autumnal quality. The Maple Boulevardier became popular in New England and Canadian cocktail bars, where maple syrup is both a regional agricultural product and a cultural symbol, providing a geographical specificity that elevated the drink beyond a simple substitution.