Fry the crushed garlic and chilli for a minute to release
their flavours. Chop the chestnut mushrooms and fry till soft, add the Soya
sauce, water and cook the liquid off and put to one side.
Cut each Pok choi in half length ways and spoon the
mushrooms across them. Place the Pok Choi in a steamer or steaming basket
and steam for 10 minutes.