Sauce   
Sugar    1 tbsp
Vinegar    2 tbsp
Cornflour     1/2 tbsp
Sesame oil   1/2 tbsp

    
Steps
1)   Cut the cabbage into small bite-sizes, cut spring onion into short stalks 
2)   Heat wok with 3 tbsp of oil, add spring onion and cabbage
3)   Stir fry in high heat for 3 minutes, add 5 tbsp of water
4)   Turn into middle heat and add salt, then cook for 3 minutes, dish up
5)   Add sauce into the cabbage cooked water, stir well and fry until boil again
6)   Pour in the cabbage and stir well, dish up and serve

Remark 
tbsp -     table spoon
Add some dry shrimps and dry red pepper, tastes will be better