In my opinion, Fernet Branca is overhyped and often (mis)used in cocktails where the menthol overpowers the drink. That's great if you love Fernet Branca - but not the point of making a cocktail, in my opinion. Since the instructions for this drink simply say "Fernet" (as does the original, although its accompanying picture shows a bottle of Fernet Branca) I decided that one could choose whatever type of Fernet one liked, and I used Fernet Vallet, which bumped this up from three stars to a weak four stars for me. I also used Bonal as in the original.
Curated this. Rewrote instructions to avoid copyright. Added date and source citation.