Clos du Mesnil at a mere £1,000 a pop was clearly catering to the shoals of suits nibbling around our ankles. To sommelier Xavier Rousset's credit an English bubbly at £12.95, available by the glass, was an affordable alternative, even if the texture-themed bar snacks of cod skin crackling or thin wafers of cheese with bland pond-like wasabi emulsion were an experiment too far.