Gather the ingredients of the Chinese Beef with Black Bean Sauce. Start by slicing the 450 g beef flank steak / bavette.
In a medium mixing bowl, add the sliced 450 g beef flank steak / bavette, 1 tsp. baking soda, and 60 ml water. Massage the beef with your hands until most of the liquid is absorbed. Cover with plastic wrap and refrigerate the beef for 1 hour.
With the help of a strainer, rinse the beef thoroughly under running water until the water runs clear and then place back into mixing bowl. Add the 2 tsp. cornstarch, 2 tsp. vegetable oil, 2 tsp. oyster sauce, and 1 tsp. Shaoxing wine to the beef and mix well. Cover with plastic wrap and refrigerate for at least 30 minutes, or overnight if desired.
The Sauce
While the beef is marinating, in another mixing bowl combine the 1 1/2 cups chicken broth, 45 g black bean and garlic sauce, 15 g oyster sauce, 1/2 tsp. sugar, 1/2 tsp. soy sauce, 1/2 tsp. sesame oil, and 1/8 tsp. ground white pepper. Set aside.
The Vegetables
Wash and cut your vegetables (1 yellow onion and 1 red bell pepper) in 1 inch / 2.5cm pieces cubes. Wash and trim the 200 g snow peas.
The Cooking
Heat the wok over high heat until it begins to smoke lightly. Add 1 Tbsp. vegetable oil around the perimeter of the wok. Place the beef in a single layer and sear it on both sides until browned (about 5 minutes). Remove the beef from the wok and set aside.
Lower the heat to medium-high and add the other 1 Tbsp. vegetable oil along with the 1 yellow onion and 1 red bell pepper. Stir-fry for 3 minutes until the onions and peppers are lightly seared. Add 1 Tbsp. Shaoxing wine to deglaze the wok.
Stir in the sauce mixture and bring it to a simmer.
Meanwhile, mix in a small bowl, the 15 g cornstarch and 30 ml water.
Return the beef (along with any juices) to the wok and add the 200 g snow peas.
Allow the contents to simmer. Stir in the cornstarch and water mix.
Cook until the snow peas are crisp-tender and the mixture thickness is to your liking. Usually, it takes me 5-10 minutes.
The Serving
Serve the Chinese Beef with Black Bean Sauce [豉汁牛肉] immediately with steamed rice.