豆腐乳, also known as fermented tofu or stinky tofu, is a traditional Chinese food made from tofu that has been fermented in a brine solution. This process gives it a strong flavor and distinctive aroma, which can be quite pungent. It is often used as a condiment or side dish in various Chinese cuisines. The fermentation process typically involves the use of rice, soybeans, and various spices, which contribute to its unique taste. 豆腐乳 can be enjoyed in different forms, such as in sauces, as a topping for rice, or even eaten on its own. It is rich in protein and is a popular choice among vegetarians and vegans.