Marinate the beef. In a mixing bowl, add the thinly sliced beef, baking soda, Shaoxing wine, light soy sauce, oyster sauce, white pepper, water, and cornstarch. Add the beef to the marinade and mix until thoroughly combined. Set aside and marinate for at least 15 minutes.

Mix stir-fry sauce. In a small mixing bowl, add the oyster sauce, light soy sauce, dark soy sauce, Shaoxing wine, sugar, chicken broth, and cornstarch. Mix until combined. Set aside.

Boil broccoli. Bring a medium pot of water to a boil with a generous pinch of salt. Once it reaches a boil, add the broccoli and cook for 1-2 minutes. Drain and set aside.

Cook the beef. Bring one tablespoon of cooking oil to a wok or large skillet on medium-high heat until hot. Once the pan is hot, spread the marinated beef onto a single layer and cook for 30 seconds on each side until seared and browned. Remove from the wok and set aside.

Stir fry everything together. Add one tablespoon of cooking oil to the skillet on medium-high heat. Once the pan is hot, add the minced garlic and ginger. Saute for 30 seconds or until fragrant. Then add the broccoli and cook the broccoli for 1 minute. Lastly, add the beef and stir-fry sauce. Toss together for 1-2 minutes or until the sauce is thickened and evenly coated. Once everything is mixed, turn off the heat, add the sesame oil, and toss to combine.

Serve. Serve with freshly diced green onions and rice. Enjoy!