Marinade the pork, with 1tbs cooking wine,1/2 tsp black pepper, 1tbs soy sauce 10min

PUT them together the dried mushroom, pork ribs, ginger, onions, add 1500 ml of water

Put to high pressure cooker to become more soft the meat, 28min, after 28 min put the radish and chinese yam, set again in 25min

Done, add the spring onions