Ingredients
- 1 lb (450g) flank steak or sirloin, thinly sliced against the grain
- 2 tablespoons soy sauce
- 1 tablespoon oyster sauce
- 1 tablespoon hoisin sauce
- 1 tablespoon cornstarch
- 1 tablespoon rice vinegar or Shaoxing wine
- 1 teaspoon sugar
- 1/2 teaspoon ground black pepper
- 2 tablespoons vegetable oil, divided
- 1 large onion, sliced
- 1 green bell pepper, sliced
- 1 red bell pepper, sliced
- 2 cloves garlic, minced
- 1/2 cup beef broth or water
- Optional garnish: sesame seeds, green onions
Instructions
- Marinate the Beef:
In a bowl, combine soy sauce, oyster sauce, hoisin sauce, cornstarch, rice vinegar, sugar, and black pepper. Add the sliced beef and mix well. Let it marinate for at least 15–30 minutes. - Prepare the Veggies:
While the beef marinates, slice the onions and bell peppers. Mince the garlic. - Sear the Beef:
Heat 1 tablespoon of oil in a large skillet or wok over high heat. Add the marinated beef in a single layer (in batches if needed). Sear until browned and almost cooked through, about 2–3 minutes. Remove from skillet and set aside. - Stir-Fry the Vegetables:
Add the remaining 1 tablespoon of oil to the same pan. Add onions and bell peppers. Stir-fry for 2–3 minutes until slightly tender but still crisp. - Combine Everything:
Return the beef to the pan. Add garlic and pour in the beef broth. Stir everything together and cook for another 2–3 minutes, allowing the sauce to thicken slightly. - Serve:
Serve hot over steamed white rice or noodles. Garnish with sesame seeds or chopped green onions if desired.
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