臭豆腐 (Chòu Dòufu), Stinky tofu is a... wait, you EAT this thing? Absolutely. A famous street food all over China, this spicy fried tofu (well, sometimes you can get the chili separately) is named for its quite repugnant smell.
The taste, however, is surprisingly moreish once you get used to the idea! The smell comes from the sulphur that gets released when the tofu protein is fried.
Each locality is famous for its own distinct style. People from Chángshā are particularly proud of theirs, perhaps because Chairman Máo once wrote about it (see below), “Stinky tofu smells bad. It looks dirty. But the taste is good”.
Stinky tofu is often sold from hawker carts on the side of the street, but also comes in gourmet versions, as in the picture. Hold your breath and have a go!
The Chairman's recommendation in cursive. Baidu Baike