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.
The sweet vermouth takes away the grapiness of the cognac, whereas the cognac compensates for the sweetness of the sweet vermouth. A perfect balance. The taste of benedictine is more subtle and adds an overall smoother and rounder taste to the drink. Fine cocktail with a refined taste.