Michel Roux Jr. thrives at this 40-year-old clubby basement haven in Mayfair, which some rate the best formal dining in London. With silver domes and unpriced ladies' menus, Roux's mastery of classic French cuisine dazzles with signatures like foie gras with cinnamon-scented crispy duck pancake, langoustine with Hollandaise sauce, or lamb with flageolets. Desserts, like roast pineapple with white-pepper ice cream, are delightful, too. Weekday set lunch is a relatively affordable treat at £48—with a half bottle of wine, water, coffee, and petits fours.
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