Any number of Cartier-wearing Belgravians flock to Zafferano, one of London's best exponents of cucina nuova. The fireworks are in the kitchen, and what fireworks: buckwheat pasta with leek and sage, lamb cutlets with hazelnut crust and white truffle polenta. The desserts are delizioso, especially the nougat parfait with chestnuts and the poached pears and mascarpone ice cream. Reservations essential. Tube: Knightsbridge.