Just made this with my own homemade sloe gin. The sharpness of the gin and the lime juice work harmoniously, the Fernet adds herbal complexity, and the honey syrup brings out an almost peppery finish. Very nice indeed.
We love Amaro sours. This and the Billy Sunday are two of our favourites. The dance between Amaro and citrus is passionately serious and assertive...like a Tango.