1 lb (450g) flank steak or sirloin, thinly sliced against the grain
2 tablespoons soy sauce
1 tablespoon oyster sauce
1 tablespoon cornstarch
1 teaspoon sugar
½ teaspoon black pepper
2 tablespoons vegetable oil
1 green bell pepper, sliced
1 red bell pepper, sliced
1 large onion, sliced
2 cloves garlic, minced
1 teaspoon fresh ginger, minced
½ cup beef broth
1 teaspoon sesame oil
👩🍳 INSTRUCTIONS
Marinate the Steak: In a bowl, combine sliced beef with soy sauce, oyster sauce, cornstarch, sugar, and black pepper. Mix well and let it marinate for 15–20 minutes.
Cook the Beef: Heat 1 tablespoon oil in a large skillet or wok over high heat. Add the beef in a single layer and sear for 2–3 minutes until browned. Remove from the pan and set aside.
Stir-Fry the Vegetables: Add remaining oil to the pan. Toss in garlic and ginger; sauté for 30 seconds until fragrant. Add onions and bell peppers. Stir-fry for 3–4 minutes until slightly tender but still crisp.
Combine & Simmer: Return beef to the pan. Pour in beef broth and stir well. Let it simmer for 2–3 minutes until the sauce thickens.
Finish & Serve: Drizzle sesame oil on top and give everything a final toss. Serve hot over steamed rice or noodles.
🔥 TIPS
Slice beef thinly against the grain for tender results.
Use high heat and cook quickly to keep vegetables crisp.
Add a splash of hoisin sauce for a slightly sweeter flavor.
