Linda Shepherd
If you’re craving the bold flavors of your favorite Asian restaurant, this Restaurant-Style Mongolian Beef is the perfect recipe to recreate at home. Tender slices of flank steak are lightly coated in cornstarch and pan-fried until beautifully crisp around the edges before being tossed in a glossy garlic soy glaze that strikes the perfect balance between sweet, savory, and slightly smoky.
The combination of soy sauce, brown sugar, hoisin sauce, oyster sauce, fresh garlic, and ginger creates a rich, silky sauce that clings to every piece of beef, while fresh green onions add brightness and texture. Best of all, this impressive meal comes together in just 30 minutes, making it ideal for busy weeknights while still being elegant enough to serve guests.
Whether paired with fluffy jasmine rice, steamed vegetables, or noodles, this homemade Mongolian Beef delivers restaurant-quality flavor with simple pantry ingredients.
Why You’ll Love This Recipe
- Ready in only 30 minutes from start to finish.
- Tender, juicy beef with perfectly crispy edges.
- A rich garlic soy glaze that’s sweet, savory, and full of flavor.
- Better and more affordable than takeout.
- Easy to customize with vegetables or extra spice.
- Perfect for weeknight dinners or special occasions.
Ingredients
- 1 pound flank steak, thinly sliced against the grain
- ¼ cup cornstarch
- 3 tablespoons vegetable oil
- 4 cloves garlic, finely minced
- 1 teaspoon fresh ginger, minced
- ½ cup low-sodium soy sauce
- ⅓ cup packed brown sugar
- ¼ cup water
- 1 tablespoon hoisin sauce
- 1 tablespoon oyster sauce
- 1 teaspoon sesame oil
- ½ teaspoon freshly ground black pepper
- 4 green onions, cut into 2-inch pieces
- 1 teaspoon sesame seeds, for garnish
- Steamed jasmine rice, for serving
Instructions
Step 1: Prepare the Beef
Slice the flank steak as thinly as possible against the grain. This helps create exceptionally tender pieces once cooked. Pat the slices dry with paper towels to remove excess moisture.
Place the sliced beef into a bowl and sprinkle with the cornstarch. Toss thoroughly until every piece is evenly coated. Allow the beef to rest for about 10 minutes. This coating helps create the signature lightly crispy texture and also helps the sauce cling beautifully to the meat.
Step 2: Mix the Sauce
While the beef is resting, prepare the sauce.
In a medium bowl, whisk together the soy sauce, brown sugar, water, hoisin sauce, oyster sauce, sesame oil, and black pepper until the sugar dissolves completely and the mixture is smooth.
Set aside.
Step 3: Cook the Beef
Heat the vegetable oil in a large wok or heavy skillet over high heat until shimmering.
Working in batches to avoid overcrowding the pan, fry the beef for approximately 2 to 3 minutes, turning once until both sides develop a lightly golden, crispy exterior.
Transfer the cooked beef to a clean plate while you finish the remaining batches.
Step 4: Build the Garlic Ginger Base
Reduce the heat to medium.
Add the minced garlic and fresh ginger to the same pan and sauté for about 30 seconds. Stir continuously to prevent burning while allowing the aromatics to become wonderfully fragrant.
Step 5: Simmer the Sauce
Pour the prepared sauce mixture into the pan.
Allow it to simmer gently for 2 to 3 minutes, stirring occasionally as it thickens into a glossy glaze that will beautifully coat the beef.
Step 6: Finish the Dish
Return the crispy beef to the pan and toss well until every slice is coated in the rich garlic soy glaze.
Add the green onions and cook for another minute, just until they become slightly tender while maintaining their fresh flavor and vibrant color.
Step 7: Garnish and Serve
Transfer the Mongolian Beef to a serving platter or individual bowls.
Sprinkle with sesame seeds for a subtle nutty crunch and serve immediately over hot steamed jasmine rice.
For an even more complete meal, pair it with steamed broccoli, snow peas, bok choy, or stir-fried vegetables.
Tips for the Best Mongolian Beef
- Slice the steak while it’s slightly frozen for cleaner, thinner cuts.
- Always slice against the grain to ensure tender beef.
- Cook the beef in small batches to maintain a crispy exterior.
- Use fresh garlic and ginger for the most authentic flavor.
- Allow the sauce to reduce before returning the beef so it develops a rich, glossy consistency.
- Serve immediately for the best texture and flavor.
Variations
- Add broccoli, bell peppers, mushrooms, or snap peas for extra vegetables.
- Stir in crushed red pepper flakes or sliced chilies for heat.
- Substitute sirloin or ribeye if flank steak isn’t available.
- Serve over lo mein noodles or brown rice for a delicious twist.
Storage
Store leftovers in an airtight container in the refrigerator for up to 3 days.
Reheat gently in a skillet over medium heat with a splash of water to loosen the sauce. Avoid overheating, as this can make the beef less tender.
Recipe Details
Prep Time: 15 minutes
Cook Time: 15 minutes
Total Time: 30 minutes
Servings: 4
Calories: Approximately 470 calories per serving
This homemade Restaurant-Style Mongolian Beef delivers everything you love about classic takeout—tender beef, aromatic garlic and ginger, and a beautifully balanced sweet and savory glaze—all made fresh in your own kitchen. It’s a dependable recipe that’s quick enough for busy evenings yet flavorful enough to impress family and guests alike.