I make a version of this that my friend calls a Froupe Carre. 30ml of cognac, rye, and sweet vermouth (prefer Remy, Michters, Carpano respectively), with the same 5ml of Bene and 2 dashes of Boker’s. It tastes a bit less candied and somehow the Boker’s seems to shine through more.
Great cocktail, but I prefer it with Fidencio mezcal and the slightly less floral, more salinated bianco vermouth. It’s the atomized Strega (Curandero due to the mezcal???) that really puts this cocktail over the top though.