On sunny days the front of the restaurant opens up — nice idea in theory but you might want to pick a table nearer the back to avoid asphyxiation. Given that chef Liam Cooper is only 25, it’s surprising that the menu reads like an Enid Blyton novel, full of macaroni cheese and custard. The place was packed with Sloanes of all ages, however, so he clearly knows what the customer wants: reasonably priced food (£22 for two courses, £27.50 for three) that harks back to boarding school meals.