Old Dog, New Tricks

Use 2:1 demerara sugar syrup for its listed portion.

Chill a cocktail coupe in advance to ensure optimal serving temperature.

Prepare a fresh mint leaf to use as a garnish.

Combine Fernet Branca liqueur, Giffard Banane du Brésil liqueur, the brown sugar syrup, and freshly squeezed lime juice in a shaker filled with ice.

Shake the mixture vigorously to blend and chill the ingredients thoroughly.

Fine strain the mixture into the pre-chilled cocktail coupe to achieve a smooth texture.

Garnish by gently floating the mint leaf on the surface of the drink.