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Mongolian beef recipe gives you a sweet-savory sauce and crisp, tender slices of beef in under 30 minutes. The balance of soy, brown sugar, and hoisin creates a glossy coating that clings to the cornstarch-coated steak for great texture.
People search for this recipe because it delivers restaurant-style flavor at home with pantry ingredients. If you like hearty, saucy mains that pair well with rice or noodles, this recipe solves that need and saves time compared to takeout. For another comfort beef dish you can make from scratch, consider this classic beef pot pie.
Why Make This Recipe
This recipe is straightforward and uses common ingredients you likely have on hand. The method focuses on quick, high-heat cooking to crisp the beef while keeping it tender.
It takes about 30 minutes active time and uses a single skillet or wok. That makes it suitable for weeknight dinners or quick meal prep for guests.
How to Make Mongolian Beef
The approach relies on a light cornstarch coating and high heat to create crisp edges on the flank steak. A simple sauce of soy, hoisin, oyster sauce, and brown sugar thickens quickly with the pan juices and a bit of water.
You cook the beef in batches to avoid crowding, which preserves the crispy texture. Tossing the beef back into the sauce at the end ensures every piece is coated and warmed through without overcooking.
Ingredients
- 1 pound flank steak, thinly sliced
- 1/4 cup cornstarch
- 3 tablespoons vegetable oil
- 3 garlic cloves, minced
- 1/4 cup soy sauce
- 2 tablespoons hoisin sauce
- 2 tablespoons oyster sauce
- 2 tablespoons brown sugar
- 1/4 cup water
- Red chili flakes to taste
- Green onions for garnish
Directions
- Coat the thinly sliced beef with cornstarch and let it marinate for 15-30 minutes.
- Heat the vegetable oil in a wok or large skillet over high heat.
- Add the coated beef in batches and cook for 2-3 minutes until crispy. Remove and set aside.
- In the same pan, sauté the minced garlic until fragrant, about 30 seconds.
- Add soy sauce, hoisin sauce, oyster sauce, brown sugar, water, and chili flakes to the pan. Stir to combine.
- Return the cooked beef to the pan and toss until well coated in the sauce.
- Serve hot, garnished with sliced green onions over steamed rice or noodles.

How to Serve Mongolian Beef
Serve the beef over steamed jasmine rice or a bed of stir-fried noodles. Add a side of steamed broccoli or bok choy to balance the richness.
Garnish with sliced green onions and a light sprinkle of sesame seeds. For a spicy kick, offer extra red chili flakes at the table.
How to Store Mongolian Beef
Cool the leftovers to room temperature within two hours and store in an airtight container. Refrigerate for up to 3 days.
To freeze, place portions in freezer-safe containers and freeze for up to 3 months. Thaw overnight in the refrigerator before reheating.
When reheating, warm gently in a skillet over medium heat with a splash of water to revive the sauce and prevent drying.
Tips to Make Mongolian Beef
Follow these quick tips to improve texture and flavor.
- Pat the steak dry before coating to help the cornstarch stick.
- Slice the flank steak against the grain for tenderness.
- Do not crowd the pan; cook in batches for crispy beef bites.
- Use high heat and a heavy skillet or wok for fast searing.
- Adjust brown sugar to taste for a sweeter or milder sauce.
- Add a splash of rice vinegar if the sauce tastes too sweet.
- Thin the sauce with a little extra water if it reduces too much.
- Let the beef rest briefly after cooking to retain juices.
Common Mistakes to Avoid
Overcrowding the pan is a common error that causes steaming instead of searing. Cook the beef in small batches and keep it moving for even crisping.
Another mistake is using too much cornstarch. A light, even coating crisps better and avoids a heavy, gummy crust. Measure carefully and shake off excess before frying.
FAQs
What cut of beef is best for Mongolian beef?
Flank steak is ideal because it slices thin and becomes tender when cooked quickly.
Can I use chicken instead of beef?
Yes, thinly sliced chicken breast or thigh works with the same sauce, though cooking time may vary.
How do I make the sauce less sweet?
Reduce the brown sugar by a tablespoon or add a teaspoon of rice vinegar to balance the sweetness.
Is it necessary to marinate the beef in cornstarch?
Yes, letting the cornstarch sit briefly helps it adhere and creates a crisp exterior when fried.
Can this dish be made gluten-free?
Use gluten-free soy sauce and check that hoisin and oyster sauce alternatives are gluten-free to adapt the recipe.
How do I reheat leftovers without drying them out?
Reheat in a skillet over medium heat with a splash of water and cover briefly to steam and revive the sauce.
Conclusion
This Mongolian beef recipe yields crisp, saucy beef that’s quick to make and satisfying for weeknights or small gatherings. For an alternative version and plating ideas inspired by a popular restaurant style, see the detailed Easy Mongolian Beef (PF Chang Style!) guide on Spend With Pennies.