Cut the flank steak against the grain into slices ¼-inch thick.
1 pound flank steak
In a large bowl, combine 2 tablespoons of cornstarch and 3 tablespoons of water together. Add the sliced flank steak and mix to coat evenly. Set aside.
3 tablespoons cornstarch, 3 tablespoons water
In a small bowl, mix the ginger, soy sauce, sesame oil, pepper, brown sugar, garlic, and remaining cornstarch together.
2 tablespoons fresh ginger, ½ cup low-sodium soy sauce, 2 tablespoons sesame oil, ½ teaspoon ground black pepper, 3 tablespoons brown sugar, 1 tablespoon minced garlic
Cut the broccoli florets into evenly sized pieces.
4 cups broccoli florets
Heat 1 tablespoon of vegetable oil in a large skillet set over medium-high heat. Add the broccoli and cook for about 4-5 minutes. Once cooked, transfer the broccoli to a small bowl and set aside.
2 tablespoons vegetable oil
Add the remaining oil and the flank steak strips to the skillet. Cook over medium-high heat until the steak has cooked evenly, about 3-4 minutes.
Pour the soy sauce mixture into the skillet and stir well.
Add the cooked broccoli and stir until evenly until heated through. Serve with white rice and sesame seeds.
Cooked white rice and sesame seeds