You can leave it out, if you wish. Cha choi (Sichuan preserved mustard stem, also called zha cai) comes whole (as a large lump covered with a red-orange paste), or cut into strips and sold in ...

While the soy milk is heating, prepare the other ingredi­ents. Finely chop the preserved mustard stem (zha choi) and mince the spring onion. Split the you tiao (Chinese fried doughnut ...