“Chou tofu”, Chou means smelly. You must think Chinese are so weird how we can eat smelly food. Smelly tofu is using some kind of bacteria to make. Similar way of making cheese. Usually wash that carefully with water and fired it well in the oil. You can eat with some sauce. Smelly tofu is one of the most famous snacks in Shanghai. If you are interested to try, go to Yuyuan garden. They have the most original smelly tofu.