Beef Stir-Fry with Bell Peppers and Onions Recipe

Beef Stir-Fry with Bell Peppers and Onions Recipe

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This vibrant and savory beef stir-fry is a celebration of bold flavors and quick cooking. Inspired by classic Asian techniques, it features tender slices of marinated beef seared to perfection, tossed with crisp bell peppers and sweet onions in a glossy, umami-rich sauce. The magic lies in the balance—salty soy, sweet hoisin, tangy rice vinegar, and aromatic garlic and ginger come together to create a sauce that clings beautifully to every bite. The vegetables retain their crunch thanks to high-heat cooking, while the beef remains juicy and flavorful. Whether you’re craving a comforting weeknight dinner or looking to impress guests with minimal effort, this stir-fry delivers satisfaction in every sizzling forkful. Serve it over steamed jasmine rice or noodles for a complete, soul-warming meal.

INGREDIENTS:

  • 1 lb (450g) beef sirloin or flank steak, thinly sliced against the grain
  • 1 red bell pepper, sliced into strips
  • 1 green bell pepper, sliced into strips
  • 1 large onion, sliced into wedges
  • 2 tbsp vegetable oil
  • 2 tbsp soy sauce
  • 1 tbsp oyster sauce
  • 1 tbsp hoisin sauce
  • 1 tbsp cornstarch
  • 1 tbsp water
  • 1 tbsp sesame oil
  • 2 tsp minced garlic
  • 1 tsp grated fresh ginger
  • 1 tbsp brown sugar
  • 1 tbsp rice vinegar
  • 1 tbsp sesame seeds (optional, for garnish)
  • Salt and pepper to taste

INSTRUCTIONS:

  1. Marinate the Beef: Begin by slicing the beef thinly against the grain—this ensures tenderness. In a bowl, combine the beef with 1 tablespoon soy sauce, 1 tablespoon cornstarch, and a pinch of black pepper. Mix thoroughly and let it marinate for at least 15 minutes. This step enhances flavor and helps the beef develop a silky texture when cooked.
  2. Prep the Vegetables: While the beef marinates, wash and slice the bell peppers into thin strips. Peel and slice the onion into wedges. Mince the garlic and grate the ginger. Having everything ready before cooking is key to stir-fry success.
  3. Make the Sauce: In a small bowl, whisk together the remaining soy sauce, oyster sauce, hoisin sauce, brown sugar, rice vinegar, and water. Stir until the sugar dissolves. This sauce will bring depth and cohesion to the dish.
  4. Cook the Beef: Heat a large wok or skillet over high heat. Add 1 tablespoon of vegetable oil and swirl to coat. Once hot, add the marinated beef in a single layer. Let it sear undisturbed for 2–3 minutes to develop a rich brown crust, then stir-fry for another 2 minutes until cooked through. Remove the beef and set aside.
  5. Stir-Fry the Vegetables: In the same pan, add the remaining tablespoon of oil. Toss in the garlic and ginger, stir-frying for 30 seconds until fragrant. Add the onions and bell peppers. Stir-fry for 3–4 minutes until slightly tender but still vibrant and crisp.
  6. Combine and Sauce: Return the beef to the pan. Pour in the prepared sauce and stir well to coat everything evenly. Cook for another 2–3 minutes until the sauce thickens and glazes the ingredients.
  7. Finish and Serve: Drizzle sesame oil over the stir-fry and toss to combine. Taste and adjust seasoning with salt and pepper if needed. Garnish with sesame seeds for a nutty crunch.
  8. Serving Suggestion: Serve hot over steamed jasmine rice, brown rice, or noodles. For extra flair, top with chopped scallions or a squeeze of lime.

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