Fermented Soy Foods
Fermented Soy Food Recipes
In Chinese cuisine, tofu may also be salted or pickled. Salted dried tofu is firm and dark brown color (doufu-kan) and fermented, preserved or pickled tofu (doufu-ru, furu, rufu, fuyu, funan) is aged tofu with a soft, creamy texture and an aroma to a very ripe cheese.
In China, the blocks of tofu are placed in a brine of rice wine, salt, chilies and spices to age, until they develop an aged, cheese-like quality. Traditionally these are a classic condiment to accompany congee and are used as flavouring in different dishes such as steamed pork or chicken with pickled cabbage, or stir-fried water spinach with garlic. One version that is coated with ground red rice is a principle ingredient in the marinade used to give Chinese barbecued duck its unique depth of flavour.
Varieties of pickled tofu (doufu-ru): white doufu-ru, red doufu-ru, tsao-doufu and chiang-doufu. The white doufu-ru (pai doufu-ru) is the most fermented tofu and there are numerous versions of it, seasoned with pepper, sesame oil, and spices such as anise and cinnamon or ingredients such as lemon juice or rind, minced ham and dried shrimp. Red doufu-ru (hung doufu-ru, nanru, nanyu) is identical in preparation to the white, except that fermented red rice is added to the pickling liquor, imparting a rich red color, thick consistency and different flavor and aroma. Tsao-dofu, famous for its strong odor, includes: chu-tsao, which is in rice wine and wine lees, and the green tofu so popular in Taiwan, ch'ou doufu ('foul-smelling tofu'), made from pressed tofu squares aged with rice wine lees to which has been added crushed leaves and a green. Despite its overpowering aroma, slimy texture, unappetizing color and the unfortunate odor it leaves on the breath, those brave enough to partake of it consider it a delicacy. Chiang-doufu, or firm cubes of tofu fermented for several days in soy sauce (chiang-yu) or Chinese style miso (chiang) is red-brown in colour and salty or salty-sweet depending on whether rice wine or mould was introduced before fermentation. Chiang-doufu sauce (chiang-doufu chih), used to flavor Chinese lamb or beef dishes, is the result of mashing pickled tofu to a smooth paste with its pickling liquor.