Prepare the sauteed oil. Put 2 tbsp cooking oil in a wok. Heat it up. Put in garlic and leeks. Let it fry until fragrant. Take out the garlic and leeks. Take only the oil. Set aside.
Put the ground pork in a bowl. Put in all the seasonings: oyster sauce, soy sauce, salt, pepper, sugar, and sauteed oil.
Add the fermented vegetables. Mix well with a spoon or a spatula until well combined.
Divide into 4 parts. Flatten the meat mixture with a spatula in the center part so it forms a bowl.
Steam with high heat for 15 minutes. It is ready to serve with steamed white rice. Garnish with leeks or coriander leaves.
Video
Notes
You can chop the fermented vegetables so it becomes small pieces, so it is evenly spread in the mixture.
Use 70/30 lean to fat ratio for the pork. Or pick the collar part.
Sometimes there will be some slimy parts of the pork on top of the patty. Take out the slimy part after steaming.