This Michelin-starred Mayfair restaurant comes from Alyn Williams - the former head chef at Marcus Wareing at The Berkeley. It's located in the Westbury Hotel, which proves a suitably elegant setting for a restaurant dedicated to fine dining and all the associated frippery.
A seven-course vegetarian tasting menu is a bit of a draw. It's available alongside a more meaty alternative, as well as a short a la carte and a couple of set lunches. As is the way with these kinds of places, everything can be matched with wine, including the extravagant desserts - think aerated white chocolate with candied fennel and lime, or a lemon mousse with passion fruit curd and banana caramel.
Keep an eye out for special events, as well as masterclasses with the man himself.