Doufu Ru is a traditional Chinese fermented tofu product, often referred to as "stinky tofu" due to its strong odor. It is made by fermenting tofu in a brine solution that may include ingredients like vegetables, herbs, and sometimes seafood. The fermentation process can take several days, resulting in a soft texture and a pungent flavor that many find appealing. This dish is commonly enjoyed as a street food in various regions of China, particularly in Taiwan and Hong Kong. It is typically deep-fried and served with a variety of sauces, making it a popular snack among locals and tourists alike.