Which Shanxi noodle dish is made by shaving strips of dough into boiling water?

The Shanxi noodle dish made by shaving strips of dough directly into boiling water is dao xiao mian.

The name is commonly translated as knife-cut, knife-sliced, or knife-shaved noodles. A cook holds a firm block of wheat-flour dough and uses a special knife to shave thin ribbons straight into a pot of boiling water or broth. The noodles are irregular, relatively thick, ribbon-shaped, and pleasantly chewy.

Dao xiao mian is strongly associated with Shanxi province, especially the city of Datong, where the technique is a celebrated culinary tradition. The dough is usually made from flour and water, sometimes with oil or other ingredients that improve elasticity. After resting, it must be firm enough to shave cleanly without collapsing.

These noodles are often served in savory broth with meat, vegetables, or sauces, and they may also be stir-fried. They are not the same as ramen or lamian: ramen is a Japanese noodle style, while lamian is pulled by stretching dough rather than shaving it.