Utterly delicious, dangerously so given the strength of it! Used Four pillars navy strength and cut it back by a third as was not my first cocktail of the evening and feeling intimidated by the 58.8%! The savoury notes of the four pillars worked brilliantly.
Nutty & toffee notes indeed :)
Had to sub Lustau's Don Nuno Oloroso because no fino on hand & Carpano Bianco. Used Cote Des Saints a navy strength gin from Quebec (it's v. nice).
Though I had to sub all the recommended ingredients for as close as I could get using what I have, I would make this cocktail again in a heartbeat. Excellent!