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Takeout-Worthy Chinese Pepper Steak with Onions

A close-up of vibrant Chinese pepper steak featuring tender beef, green and red bell peppers, and onions coated in a rich brown sauce.

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Make this easy Chinese Pepper Steak stir fry at home in 30 minutes. You get tender beef strips, crisp bell peppers, and onions coated in a savory, restaurant-quality Asian sauce.

Ingredients

Scale
  • 1 pound flank steak, sliced thinly against the grain
  • 2 tablespoons soy sauce, divided
  • 1 tablespoon cornstarch
  • 2 tablespoons vegetable oil, divided
  • 1 green bell pepper, sliced
  • 1 red bell pepper, sliced
  • 1 large onion, sliced
  • 3 cloves garlic, minced
  • 1 tablespoon fresh ginger, minced
  • 1/4 cup beef broth
  • 2 tablespoons oyster sauce
  • 1 tablespoon brown sugar
  • 1 teaspoon sesame oil
  • 1/2 teaspoon black pepper

Instructions

  1. In a medium bowl, combine the sliced flank steak with 1 tablespoon of soy sauce and the cornstarch. Toss to coat the beef completely. Set aside for 10 minutes.
  2. In a small bowl, whisk together the beef broth, oyster sauce, remaining 1 tablespoon of soy sauce, brown sugar, sesame oil, and black pepper to create the sauce. Set aside.
  3. Heat 1 tablespoon of vegetable oil in a large skillet or wok over medium-high heat until shimmering. Add the marinated beef in a single layer (work in batches if necessary to avoid crowding) and stir fry for 1 to 2 minutes per side until browned. Remove the beef from the skillet and set it aside.
  4. Add the remaining 1 tablespoon of vegetable oil to the skillet. Add the sliced bell peppers and onion. Stir fry for 3 to 4 minutes until the vegetables are crisp-tender.
  5. Add the minced garlic and ginger to the skillet. Cook for 30 seconds until fragrant.
  6. Return the cooked beef to the skillet with the vegetables. Pour the prepared sauce mixture over the beef and vegetables.
  7. Stir constantly and cook for 1 to 2 minutes until the sauce thickens and coats everything evenly.
  8. Remove from heat immediately. Serve your sizzling Chinese pepper steak hot over steamed rice for a complete weeknight dinner.

Notes

  • For the most tender beef, slice the flank steak against the grain.
  • If you want a spicier flavor, add 1/2 teaspoon of red pepper flakes with the garlic and ginger.
  • This dish is best served immediately while the vegetables are still crisp.

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