Don’t go to ‘the Firehouse’ for the slebs (they’re all hiding in the VIP bits of the hotel, anyways), go for Nuno Mendes’ cooking. Compared to the maverick dishes he made his name with, the offerings at this Marylebone hotspot can appear rather prosaic – until you consider how Mendes makes them. Take this steak tartare: a fillet of 48-day aged Irish beef, lightly seared, then bound with an alabaster pine nut emulsion. A single Burford Brown egg yolk is removed from an immersion of olive oil, then carefully balanced on top. For ‘mixing in’, there’s a blob of house-made chipotle paste, more of the pine nut emulsion, plus finely chopped or julienned accoutrements: shallots, cornichons, radishes and parsley. On the side, there are thyme-scattered ‘country bread’ crostini plus a bottle of Firehouse ‘hot sauce’ (made with fennel, apple, garlic, tomatoes, red chillies – all smoked, then cooked down with cider vinegar). The sauce is designed to ‘evolve’ the flavour of the tartare, so try it first without, then with. In short, every mouthful is unique, and you can have your tartare exactly how you want it. Hey, you’re worth it.