Add all the ingredients into the pot without needing to cut anything.
Stir the ingredients to ensure everything is evenly distributed.
Set the Instant Pot to the "Meat/Stew" / High Pressure setting and cook for 60 minutes.
After the Instant Pot finishes cooking, you can either perform a quick release by venting or let it naturally release pressure.
Remove the beef shank from the pot and set aside to allow it to cool. Cooling the beef shank will allow it to be sliced cleanly without falling apart.
Bring a pot of water to a boil and cook the noodles according to the package instructions.
To serve, slice the beef shank and add it to each bowl along with the noodles. Top with your choice of garnishes, such as bok choy, pickled mustard greens. Enjoy!
