Soak the beef ribs in the bloody water, then wash and set aside.
Set aside ginger slices, star anise, cinnamon and bay leaf.
Put the cleaned beef ribs into the pressure cooker.
Add light soy sauce, oyster sauce, corn starch, ginger slices, star anise, cinnamon and bay leaf.
Add appropriate amount of water.
Bring the pressure cooker to a boil over high heat then reduce heat to low for about 30 minutes.
The pressed braised beef ribs can be used to cook noodles, rice noodles, etc
Boil water in a pot and add noodles.
Cook until noodles are cooked through and serve in a bowl.
Place the beef ribs, sprinkle with chopped green onions, and pour the noodle soup and beef rib soup over them.