Noodles with pork and pickles

Fresh mustard cabbage or gai choy is often used in simple homely soups, but the vegetable achieves an almost noble status in Shanghai when it is pickled in vinegar or preserved in salt, in much the same way as German sauerkraut. Pickled mustard cabbage is often sold with its pickling liquid in large plastic bags. Combine with a little pork and a lot of noodles, and a state of bliss will follow presently.