Slice the steak into thin slices, about ¼-inch thick and 3-4 inches in length. Place in a bowl with all but 1 tablespoon of the cornstarch, and mix well until evenly coated.
½ lb Flank steak, ¼ cup Cornstarch
Chop the green tops of the green onions into 2-inch pieces, and set aside.
2 stalks Green onions
Heat the oil in a large skillet or wok over medium-high heat. Once hot and shimmering, add the steak and sear for 2-4 minutes per side, until golden brown. Remove, and set aside.
2 Tablespoons Avocado oil
Add the beef stock, soy sauce, brown sugar, grated ginger, and minced garlic to the pan, and mix well, making sure to scrape up the browned bits on the bottom of the pan. If using chili peppers, add them in now.
½ cup Beef stock, ¼ cup Low sodium soy sauce, ⅕ cup Brown sugar, 2 teaspoons Ginger, 4 cloves Garlic
Prepare a slurry of the water and last tablespoon of cornstarch in a small bowl. Mix well, then pour it into the sauce in the pan, stirring frequently. Cook another 2-3 minutes until thickened.
¼ cup Water, ¼ cup Cornstarch
Add the beef and green onions to the pan, and stir to coat.
Serve over white rice or noodles with a topping of sesame seeds, and enjoy!
3 cups White rice, 2 Tablespoons Sesame seeds