Shanghai scallion oil noodles
Cong you ban mian is a Shanghai breakfast and late-night favourite: thin wheat noodles tossed in oil that has been slowly infused with spring onions until they turn dark and crisp, plus a sweet soy sauce. It's almost nothing, and yet the caramelised onion flavour is addictive. Locals have it with a bowl of soup or a fried egg. Chef's tip: fry the spring onions over a medium-low heat for the full 12 minutes, until deep brown but not black; pale onions give oil with no character.

















