Stir-fried Oyster Mushrooms

In 1986 my sister Yan-ho and I visited the capital of Yunnan, Kunming, renowned for its geological wonders, the stone forests. Unexpectedly, we were told of a food street off a side street in the centre of town. We sauntered there one evening and found ourselves in the midst of a myriad stall-restaurants, many of which were no more than tricycles turned back to front, decked out to become food counters. On them were numerous ingredients ready for stir-frying at a moment’s notice when passer