Dover Street Counter

You're walking into something genuinely unpretentious for this part of Mayfair—no tablecloths, no faffing about. Dover Street Counter seats you at a sleek counter where you can actually watch the kitchen work, which is the whole point. It's the kind of place where they've clearly thought hard about what's on the plate but haven't lost their sense of humour about it. The vibe is controlled but never stiff; you're eating proper food from people who know what they're doing, without anyone treating you like you've wandered into a temple.