Fermented tofu, also known as stinky tofu, is a traditional Asian food made by fermenting tofu in a brine solution. This process gives it a strong odor and a unique flavor, which can be an acquired taste for some. It is often served fried, grilled, or in soups, and is popular in countries like China, Taiwan, and Indonesia. The fermentation process typically involves the use of specific bacteria and molds, which break down the proteins and fats in the tofu. This not only enhances its flavor but also increases its nutritional value, making it a source of probiotics that can benefit gut health.