Beef Onion Stir Fry (Print Version)

# Ingredients:

01 - 1 pound of thinly sliced flank steak.
02 - 1 medium white onion, cut into slices.
03 - 4 scallions, chopped into 2-inch sections.
04 - 4 garlic cloves, chopped finely.
05 - 2 tablespoons vegetable oil, split.
06 - 1 tablespoon soy sauce.
07 - 2.5 tablespoons cornstarch, used in parts.
08 - 3 tablespoons Shaoxing wine, divided.
09 - 2 teaspoons sesame oil.
10 - 1/2 teaspoon baking soda.
11 - 1 tablespoon oyster sauce.
12 - 1/2 tablespoon dark soy sauce.
13 - 1/4 teaspoon black pepper.
14 - 4 tablespoons water.
15 - 1 teaspoon sugar.

# Instructions:

01 - Combine baking soda, soy sauce, wine, sesame oil, a little cornstarch, and oil in a bowl. Toss in the beef and let it sit for around 10-15 minutes.
02 - In a bowl, stir together sugar, water, dark soy, oyster sauce, wine, black pepper, and some cornstarch. Set it next to your stove.
03 - In a large pan over medium-high heat, heat the oil. Cook the beef for about 1-2 minutes per side until browned. Take it out of the pan.
04 - Use the same pan to stir-fry onion slices, garlic, and the white parts of scallions. After about 2 minutes, when the onion softens, it's ready.
05 - Put the beef back in the pan with the sauce. Stir and cook for 1-2 minutes as it thickens. At the very end, toss in the scallion greens.

# Notes:

01 - Slice beef against the grain to make it tender.
02 - If needed, replace Shaoxing wine with rice vinegar.
03 - To thin the sauce, stir in more water.