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30-Minute Chinese Pepper Steak Stir-Fry

A close-up of a plate featuring savory pepper steak mixed with colorful bell peppers and a side of fluffy white rice.

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Make tender beef and colorful peppers in a savory sauce quickly. This easy stir-fry tastes better than takeout and is ready in 30 minutes.

Ingredients

Scale
  • 1.5 lbs flank steak, thinly sliced against the grain
  • 1 tablespoon cornstarch
  • 1 tablespoon soy sauce
  • 1 teaspoon sesame oil
  • 1 tablespoon vegetable oil
  • 1 large onion, cut into wedges
  • 2 bell peppers (one red, one green), sliced
  • 3 cloves garlic, minced
  • 1 teaspoon fresh ginger, grated
  • 1/2 cup beef broth
  • 1/4 cup soy sauce
  • 2 tablespoons brown sugar
  • 1 tablespoon rice vinegar
  • 1 teaspoon cornstarch mixed with 2 teaspoons cold water (slurry)
  • Cooked white rice, for serving

Instructions

  1. Place the sliced steak in a bowl. Toss with 1 tablespoon cornstarch, 1 tablespoon soy sauce, and 1 teaspoon sesame oil. Let it marinate for 10 minutes.
  2. Heat the vegetable oil in a large skillet or wok over medium-high heat. Add the marinated steak in a single layer (work in batches if necessary) and cook for 2-3 minutes per side until browned. Remove the steak and set it aside.
  3. Add the onion and bell peppers to the same skillet. Stir-fry for 4-5 minutes until the vegetables are crisp-tender.
  4. Add the minced garlic and grated ginger to the skillet. Cook for 30 seconds until fragrant.
  5. In a small bowl, whisk together the beef broth, 1/4 cup soy sauce, and brown sugar. Pour this mixture into the skillet. Bring to a simmer.
  6. Stir in the rice vinegar.
  7. Whisk the cornstarch slurry again and pour it slowly into the simmering sauce, stirring constantly until the sauce thickens slightly.
  8. Return the cooked steak to the skillet. Toss everything together until the steak is coated and heated through, about 1 minute.
  9. Serve immediately over hot white rice.

Notes

  • For the most tender beef, slice the flank steak thinly against the grain.
  • You can substitute broccoli florets or mushrooms for some of the peppers if desired.
  • To make this a low-sodium version, use low-sodium soy sauce in both the marinade and the sauce.

Nutrition