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Mongolian Beef Recipe

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This Mongolian Beef is tender, caramelized, and coated in a rich, garlicky-sweet soy sauce with just the right amount of heat. It’s a quick and easy stir-fry that’s better than takeout—ready in under 30 minutes!

Ingredients

Scale

For the Beef:

  • 1 lb flank steak (or sirloin), thinly sliced against the grain
  • ¼ cup cornstarch
  • 2 tablespoons vegetable oil

For the Sauce:

  • ½ cup low-sodium soy sauce
  • ¼ cup brown sugar (light or dark)
  • ½ cup beef broth (or water)
  • 2 teaspoons sesame oil
  • 1 tablespoon hoisin sauce (optional, adds depth)
  • 1 teaspoon ginger, grated
  • 3 cloves garlic, minced
  • ½ teaspoon red pepper flakes (optional, for heat)
  • 1 tablespoon cornstarch + 2 tablespoons water (for thickening)

For Garnish:

  • 2 green onions, sliced
  • 1 teaspoon sesame seeds

Instructions

Step 1: Prepare the Beef

  1. Slice the steak thinly against the grain into bite-sized strips.
  2. Toss the slices in cornstarch until evenly coated. Let sit for 10 minutes (this helps crisp the beef and thicken the sauce).

Step 2: Make the Sauce

  1. In a bowl, whisk together soy sauce, brown sugar, beef broth, sesame oil, hoisin sauce, ginger, garlic, and red pepper flakes.
  2. In a small cup, mix 1 tablespoon cornstarch with 2 tablespoons water and set aside.

Step 3: Cook the Beef

  1. Heat vegetable oil in a large pan or wok over medium-high heat.
  2. Add beef slices in a single layer (cook in batches if needed). Sear for 1-2 minutes per side until browned and crispy. Remove and set aside.

Step 4: Combine & Simmer

  1. In the same pan, pour in the sauce and bring to a simmer.
  2. Stir in the cornstarch slurry and let cook for 1-2 minutes, until thickened.
  3. Return the crispy beef to the pan, tossing to coat in the sauce.

Step 5: Serve & Garnish

  • Top with green onions and sesame seeds.
  • Serve hot over steamed rice or noodles!

Notes

✔ Extra crispy beef? Use less sauce and fry the beef in more oil.
✔ Want more veggies? Add broccoli, bell peppers, or carrots.
✔ Like it spicier? Increase the red pepper flakes or add Sriracha.
✔ Gluten-free? Use tamari or coconut aminos instead of soy sauce.

Find it online: https://ukfinda.com/mongolian-beef-recipe/