1poundflank steak, thinly sliced against the grain
2tablespoonssoy sauce
2tablespoonscornstarch
2tablespoonsvegetable oil
1eachbell pepper (red, green, or yellow), sliced
1mediumonion, sliced
3clovesgarlic, minced
1inchpiece ginger, minced
1tablespoonoyster sauce
1tablespoonsugar
0.25teaspoonblack pepper
0.25cupbeef broth
to tastenonegreen onions, chopped (for garnish)
Instructions
In a bowl, combine the sliced flank steak with soy sauce and cornstarch. Mix well and let it marinate for about 15 minutes.
While the steak is marinating, slice the bell pepper and onion, and mince the garlic and ginger. Set aside.
In a large skillet or wok, heat the vegetable oil over medium-high heat until it's hot but not smoking.
Add the marinated steak to the skillet in a single layer. Sear for about 2-3 minutes without stirring, allowing it to form a nice crust. Then stir-fry for another minute until it's cooked through. Remove the steak from the skillet and set aside.
In the same skillet, add the sliced onion, bell pepper, garlic, and ginger. Stir-fry for 2-3 minutes until the vegetables are slightly tender but still crisp.
Return the steak to the skillet. Mix oyster sauce, sugar, black pepper, and beef broth in a small bowl, then pour it over the steak and vegetables. Toss everything together, cooking for an additional 2 minutes until the sauce thickens slightly.
Remove from heat and garnish with chopped green onions.
Notes
For a spicier kick, consider adding sliced chili peppers.