Add the soda powder; boil only very briefly. Remove the mustard plants and wash with cold water. Place in boiling broth, add the salt and MSG and boil for two minutes. Remove and set out on a plate.
2. 將芥菜心放開水中，加蘇打粉稍燙即撈出沖冷水，再放進燒開的高湯中，加 (1) 料燙煮 2 分鐘，撈起整齊排列在盤中。