Ask anyone in Shanxi what they are proudest of, and the answer is usually noodles. Shanxi is often called the noodle heartland of China, and its single most famous export is dao xiao mian — knife-cut noodles — which Datong has made its own. The name describes the technique. The chef holds a block of soft dough in one hand and a curved blade in the other, shaving thin strips directly into a pot of boiling water. The strips fall one by one, each thicker in the middle and feather-thin at the edges. Good knife work produces noodles of even length that cook in seconds and carry sauce well — there is nothing quite like watching it done at an open counter. How to order Noodle shops in Datong work on a simple formula: pick a topping, pick a size. Common choices include: Tomato and egg — the everyday classic, mild and slightly sweet. A safe order if you are new to the dish, and the usual choice for vegetarians. Braised pork — rich, soy-braised meat over the noodles. Beef or lamb — heartier, often with a spoonful of chili oil on top. Sides are what make the meal: a braised egg, dried tofu, or shreds of kelp. Vinegar sits on every table — Shanxi is also China’s vinegar country, and locals season their bowl liberally. What it costs A bowl in an ordinary noodle shop costs roughly ¥10–30 depending on the topping; add a few yuan for sides. It is the closest thing Datong has to a national dish you can eat on a budget. When to eat it Any time — but a steaming bowl hits hardest in winter, when Datong’s dry cold makes hot noodle soup feel less like lunch and more like a survival strategy.