Tauco
Tauco, Taucu, Taotjo, Tao Jiew or Tauchu are various adaptations of the yellow soybean paste from China created by overseas Chinese in Southeast Asia. Tauco is made by boiling yellow soybeans, grinding them, mixing them with flour, and fermenting them to make a soy paste. The soy paste is soaked in salt water and sun-dried for several weeks, furthering the fermentation process, until the color of the paste has turned yellow-reddish. Good tauco has a distinct aroma. The tauco is commonly used by Chinese Indonesians, Malaysian Chinese, Chinese Singaporeans, Chinese Bruneians, and Thai Chinese. It is also used in other Indonesian cuisine traditions, such as Sundanese cuisine and Javanese cuisine, as well as by non-Chinese Malaysians, Singaporeans, Bruneians, and Thais.
The sauce is often used as a condiment and flavouring for stir-fried dishes such as tahu tauco, kakap tahu tausi, in soup such as swikee oh and pie oh, or stir fried with kangkung. The tauco of Indonesia originated from the acculturation between Chinese and Sundanese ethnic groups in Cianjur. Today the major production centre of tauco in Indonesia are in Cianjur in West Java, and Pekalongan in Central Java. In Singapore, Malaysia, and Brunei, the main commercial brand of taucu is Yeo Hiap Seng. In Thailand, the sauce is often used in stir-fries, such as Pad Mee Korat and stir-fried vegetables, and also dipping sauces such as Khao Man Gai.