The flavour is waiting at the bottom
Congyou banmian (葱油拌面) has no broth to hide behind. Scallions are fried slowly until deep brown, trading their raw bite for a toasty sweetness. Light soy sauce brings salt; dark soy is often used for colour. The sauce settles under the noodles, so an unmixed bowl starts bland and ends much too salty.
The topping includes fried scallions and kaiyang, or dried shrimp. It adds savouriness along with a shellfish allergy risk.
Turn the noodles up from the bottom
Push the chopsticks down, lift the sauce and scallion oil through the noodles, then shake the strands loose. Repeat until the colour looks even. Eat while hot: the scallions keep a little crunch, whereas the noodles soften and clump as they sit.
Ask for less soy sauce if you are sensitive to salt, or mix in only part of the sauce first. The scallion oil already carries plenty of weight. If you add a pork chop or fried egg, there is little need to order several fried sides too.
Plain and dried-shrimp versions are different orders
The basic bowl can be only noodles, scallion oil and soy sauce. A common variation adds kaiyang (开洋), dried shrimp. That is the version in the photograph. Say 不要开洋 if you want the scallion-only version; add braised pork, a pork chop or an egg if you want a larger meal.
Allergy and vegetarian note
The noodles usually contain wheat and the soy sauce contains soy and plenty of salt. Kaiyang is shellfish. Some shops use lard or meat stock in the oil, toppings or soup. Vegetarians should ask for no dried shrimp and confirm whether lard is used. Diners allergic to shellfish, wheat or soy should also ask about shared cookware and sauces.
