2 ounces balsamic vinegar
2 ounces agave nectar
2 ounces sweet vermouth, such as Carpano Antica
1 1/2 ounces rye whiskey, such as Bulleit
1/2 ounce Aperol
The Boulevardier is a classic cocktail that is very similar to the Negroni, but made with rye whiskey instead of gin. The balsamic glaze adds an additional layer of complexity and balance by providing a sweet and sour component to a cocktail known for its dry and slightly bitter flavor profile.