Instructions:

1. Marinate the Beef 🥩
   • In a bowl, combine sliced flank steak, 2 tbsp soy sauce, and cornstarch. Mix well and let it sit for 15 minutes.
2. Cook the Beef 🍳
   • Heat vegetable oil in a large skillet or wok over medium-high heat. Stir-fry the marinated beef for 4–5 minutes until browned. Remove and set aside.
3. Stir-Fry the Vegetables 🌶️🧅
   • In the same skillet, stir-fry onion and bell peppers for 3–4 minutes until tender-crisp.
4. Add Aromatics 🧄🫚
   • Add minced garlic and ginger. Stir-fry for 1–2 minutes until fragrant.
5. Prepare the Sauce 🥣
   • In a bowl, whisk together 1/4 cup soy sauce, beef broth, oyster sauce, hoisin sauce, sugar, black pepper, and red pepper flakes (if using).
6. Combine and Cook 🥘
   • Return the beef to the skillet. Pour the sauce over the beef and vegetables, stirring to combine. Cook for 2–3 minutes until the sauce thickens.
7. Serve and Garnish 🍚✨
   • Serve the pepper steak over cooked rice. Garnish with chopped green onions for a fresh, flavorful finish.