Thinly slice beef into 1/4 inch thick strips. Season beef with pepper, garlic powder, cornstarch, baking soda and a drizzle of olive oil. Allow to marinate for at least 10 minutes.
While the beef marinates; slice up onion, green onions and mince garlic.
In a small bowl, combine oyster sauce, light soy sauce, dark soy sauce, grated garlic and ginger, red pepper flakes, if desired and brown sugar. Mix well then set aside.
Heat 1/2 cup of oil in a wok or large pan over medium high heat. Shallow fry the beef for about 3 minutes on both sides. Remove beef from the oil and drain the excess oil, leaving about 1 tbsp.
Reduce heat to medium, sautè onions and chili peppers in rendered beef fat until the onions begin to soften. Add in white part of the green onions and minced garlic. Sautè until the garlic is fragrant, about 2 minutes.
Reduce heat, return beef back into the pan Add in a splash of Shaoxing wine. Pour in the sauce and the green part of the green onions. Stir and toss until the sauce covers the beef and veggies.
Serve warm over white rice.
Enjoy!
Notes
** (double the the sauce measurements if you're making more!)