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Easy 30-Minute Black Pepper Beef

Christie Lai
Tender beef and crisp bell peppers and onions are stir-fried in a rich, savory black pepper sauce. This easy black pepper beef is ready in just 30 minutes, with a simple velveting marinade that keeps the beef tender and juicy.
5 from 13 votes
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Prep Time 25 minutes
Cook Time 5 minutes
Total Time 30 minutes
Course Main Course
Cuisine Chinese
Servings 2
Calories per serving 268 kcal

Ingredients
 
 

  • ½ lb flank steak
  • ½ large red bell pepper large diced
  • ½ large green bell pepper large diced
  • ½ medium onion julienned
  • 1 tablespoon vegetable oil or any neutral oil

Beef Marinade

Sauce

Instructions
 

    Optional: Partially freeze the beef uncovered for 45-60 minutes until the exterior is firm for easier thin slicing.
  • Using a sharp knife, slice the flank steak against the grain at a 45° angle into ¼-inch-thick strips.
  • Transfer the beef strips to a large bowl. Add the beef marinade ingredients and mix well. Marinate for 15-20 minutes and set aside.
  • In a small bowl, combine the sauce ingredients until the sugar has fully dissolved and set aside.
  • Heat the vegetable oil in a large pan or wok over medium-high heat. Once hot, add the beef in a single layer, cooking in batches if needed to avoid overcrowding. Sear on both sides until cooked through with lightly browned edges, about 2-3 minutes. Remove and set aside.
  • Stir-fry the onions and bell peppers for about 30 seconds until crisp-tender.
  • Re-whisk the sauce and pour it into the pan. Simmer for about 1 minute until glossy and thick enough to coat the back of a spoon. Return the beef and toss briefly until evenly coated and heated through. Serve immediately.
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Nutrition
Calories: 268kcal | Carbohydrates: 21g | Protein: 31g | Fat: 7g | Saturated Fat: 3g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 3g | Cholesterol: 70mg | Sodium: 2210mg | Potassium: 760mg | Fiber: 3g | Sugar: 6g | Vitamin A: 1447IU | Vitamin C: 89mg | Calcium: 66mg | Iron: 3mg