Add the broth, green onions, celery, garlic, soy sauce, ginger, oyster sauce, brown sugar, and rice vinegar to the inner pot.
Warm, stirring regularly, until it starts to steam but don't bring it to a simmer or boil.
Press cancel.
Break the noodles in half and lay them in a crosshatch pattern. Gently press the noodles into the broth.
Close and lock the lid. Press manual high pressure and adjust the cooking time to 4 minutes. Be sure that the pressure release valve is set to sealing.
When the cooking time has finished, carefully turn the pressure release to venting to release the pressure.
Add the cabbage, and give everything a good stir.
Bring to a simmer, stirring regularly, and cook for 2-3 minutes.
Stir the cornstarch and remaining 1 tablespoon broth together.
Stir in the cornstarch mixer and simmer, stirring constantly, until slightly thickened, about 1 minute.
Notes
Noodles: Spaghetti noodles are not traditional. However, they are readily available and make a good substitute in this recipe.
Lower sodium: To lower the sodium content, use reduced-sodium soy sauce and low sodium or no salt broth.
Servings: This recipe makes 6 side dish servings or 4 main dish servings.