Cut broccoli into medium-sized florets, soak in salted water for 15 minutes, then rinse and drain.
Meanwhile, sliced pork thinly, and add the combined seasonings, leave for 10 minutes.
Peel and finely chop 1 tbsp ginger, and minced 2 garlic cloves.
Heat 1 tbsp cooking oil in the pan to medium, then add ginger and saute until fragrant.
Turn heat to high and add broccoli and saute for 2 minutes.
Add 1/3 tsp salt and 3 tbsp of water, cover, and cook for 2 minutes.
Remove broccoli and set aside on a plate.
Wipe down the pan and add 1 tbsp cooking oil.
Add pork, loosen meat evenly in pan, leave for 1 minute, then turn the meat over and leave for 1 minute.
Lower heat to medium, add garlic and saute for 1 minute.
Add oyster sauce, the remaining water, cover, and cook for 3 minutes.
Return broccoli into pan and saute for 1 minute.