Classic cocktails are classics for a reason. They stand the taste & test of time. For example, the Boulevardier has been around for a very very long time. Many cocktail aficionados & professionals have been re-examining, reworking & exploring traditional drinks. One of my favorites of old is the Boulevardier which is takeoff of the Negroni. What we have here is the sweetness & spice of bourbon, the bitter earthiness of Campari (or you can sub Aperol) & the rich bittersweet nuances of sweet vermouth. I absolutely adore this drink.