In a bowl, combine the pork shoulder with soy sauce, oyster sauce, corn starch, and salt. Mix until evenly coated and let marinate for 10 minutes.
8 oz pork shoulder, 1 tablespoon soy sauce, 1 tablespoon oyster sauce, 1 teaspoon corn starch, ¼ teaspoon salt
In a small bowl, whisk together soy sauce, dark soy sauce, Shaoxing wine, oyster sauce, sugar, sesame oil, corn starch, and white pepper until smooth. Set aside.
2.5 tablespoon soy sauce, 2 teaspoon dark soy sauce, 1 tablespoon Shaoxing wine, 1.5 tablespoon oyster sauce, 1.5 teaspoon granulated sugar, 1 teaspoon sesame oil, ½ teaspoon corn starch, Dash of white pepper
Heat a bit of avocado oil in a large pan or wok over medium-high heat. Add the marinated pork and stir-fry until just cooked through, about 2-3 minutes. Remove from the pan and set aside.
Avocado oil
Add another drizzle of avocado oil then add the garlic and ginger. Stir-fry until fragrant, about 30 seconds. Add the rehydrated shiitake mushrooms and deglaze the pan with a splash or two of the reserved soaking liquid. Cook for about 1 minute until softened.
3 cloves garlic, 1 teaspoon minced ginger, 5 dried shiitake mushrooms
Add the Napa cabbage and green onions then stir-fry for 1-2 minutes until the cabbage softens slightly.
3 cups Napa cabbage, 2 green onion
Add the frozen rice cakes and chicken broth. Cover and simmer for 2-4 minutes until the rice cakes are tender and slightly chewy (be careful not to overcook as the rice cook will become soggy). Return the pork to the pan, pour in the sauce, and toss everything together until evenly coated and the sauce slightly thickens.
1 pound rice cakes, ⅔ cup low-sodium chicken broth
Serve immediately and garnish with chopped green onions and optional chili oil.
Chopped green onions, Chili oil