Ingredients
Method
Marinate the Beef:
- In a bowl, combine the sliced beef with 1 tablespoon soy sauce, cornstarch, and black pepper. Mix well and let sit for 10 minutes.
Make the Sauce:
- In a small bowl, mix remaining soy sauce, oyster sauce, vinegar, brown sugar, and beef broth. Set aside.
Stir-Fry Beef:
- Heat 1 tablespoon oil in a wok or large skillet over medium-high heat. Add beef in batches and sear for 1–2 minutes until browned. Remove and set aside.
Cook Vegetables:
- In the same pan, add remaining oil. Sauté onion, garlic, and ginger for 1 minute. Add bell peppers and stir-fry for 2–3 minutes until slightly tender.
Combine & Simmer:
- Return beef to the pan. Pour in the sauce and toss everything together. Cook for another 2–3 minutes until the sauce thickens and coats the beef.
Rest & Serve:
- Let it rest for 5 minutes off heat. Serve hot with steamed rice.
Notes
- You can substitute sirloin with flank steak or ribeye for a richer flavor.
- For a spicier kick, add crushed red pepper or sliced chilies.
- Gluten-free soy sauce or tamari can be used for gluten sensitivity.