Beef Stir-Fry with Onions and Peppers.

Ingredients

For the beef

• 500 g (1 lb) beef (sirloin, flank, or ribeye), sliced thin

• 1 tbsp soy sauce

• 1 tbsp oyster sauce

• 1 tsp cornstarch

• 1 tsp sugar

• ½ tsp black pepper

• 1 tbsp oil

For the stir-fry

• 1 large onion, cut into chunks

• 1 red bell pepper, sliced (green works too)

• 2–3 cloves garlic, minced

• 1 tsp ginger, minced (optional)

• 2 tbsp oil (for cooking)

Sauce

• 2 tbsp soy sauce

• 1 tbsp oyster sauce

• 1 tbsp dark soy sauce (optional, for color)

• ¼ cup beef broth or water

• ½–1 tsp black pepper (to taste)

• ½ tsp sugar

Instructions

1. Marinate the beef
   Mix beef with soy sauce, oyster sauce, cornstarch, sugar, pepper, and oil. Let rest 15–20 minutes.

2. Sear the beef
   Heat a wok or skillet on high heat. Add oil and sear beef in batches for 1–2 minutes, just until browned. Remove and set aside.

3. Stir-fry vegetables
   In the same pan, add a little oil if needed. Add garlic and ginger, stir for a few seconds. Add onions and peppers, stir-fry 2–3 minutes until slightly tender but still crisp.

4. Combine & sauce
   Return beef to the pan. Add sauce ingredients. Toss everything together and cook 2–3 minutes until glossy and slightly thick.

5. Finish
   Taste and adjust salt or pepper. Serve hot.