Strictly speaking you wouldn’t class Askua Barra as a venue for sherry drinkers as such: only two sherries on the card, a Lustau manzanilla and the Tradicion Fino (saca de mayo 2015). 

Having said that, the Tradicion is a beauty and the combination with this excellent, meat intense steak tartare (and with the bone marrow that followed) was a joy. 

Moreover, since it is around the corner from La Venencia there is more than one way to skin the cat.