Suan la fenHot and sour sweet potato noodles
Chongqing's hot and sour noodles are made from sweet potato starch, so they are chewy, bouncy and almost clear. They come in a broth that is sharp with black vinegar and red with chilli, topped with fried peanuts or soybeans and a spoonful of pickled greens. Students live on it, and it's a favourite late-night snack across the south-west. Plan for the 30-minute soak for the dried noodles. Chef's tip: add the vinegar to the bowl, not the pan; boiled vinegar loses the sharp edge that makes this dish.
























































































