Mongolian Beef

A crispy, sweet, and savory Mongolian Beef recipe that rivals your favorite takeout, featuring tender flank steak and a glossy, garlic-ginger glaze.

Why This Recipe Works:

• Cornstarch Velveting: Coating the beef in cornstarch creates a protective barrier, ensuring the meat stays tender inside while getting incredibly crispy on the outside.
• High-Heat Batch Cooking: Searing the beef in small batches prevents the pan temperature from dropping, avoiding the dreaded "steamed beef" effect.
• Balanced Glossy Glaze: A precise mix of dark brown sugar and low-sodium soy sauce clings perfectly to the beef without becoming overly salty.

I still remember the exact Friday night my old electric stove top gave out, leaving me with a half-seared pan of gray, sad flank steak.

It was a total disaster.

I wanted that shatteringly crisp takeout texture. Instead, I got a soggy, steamed pile of meat that tasted mostly like disappointment.

Most home recipes fail because they crowd the pan, which drops the temperature and coaxes the meat into releasing its juices. Think about this in terms of physics: if the moisture can't evaporate instantly, your beef boils in its own liquid instead of searing. I learned this the hard way after ruining several expensive cuts of flank steak.

The simple fix is a generous dusting of cornstarch and cooking in small, rapid batches. Trust me on this one.

Now, you don't need a roaring commercial wok to get this right. Just grab your trusty cast-iron skillet, tap your tongs against your hip, and let's make some magic.

It is hands down better than takeout.

If you are a fan of quick, high-heat beef dinners, this recipe shares a lot of DNA with our popular Korean Beef Bowls. Or, if you prefer a different cut of meat, check out our Rice Bowl with Skirt Steak.

Mongolian Beef

• Publisher Storied Skillet
• Cuisine Chinese-American
• Category Dinner, Beef
• Prep Time 15 minutes
• Cook Time 10 minutes
• Servings 4
• Calories 380 calories
• Rating 4.8 3435
• Tags Mongolian Beef, crispy beef, flank steak, takeout style, easy dinner

Ingredients

• 1 lb (450g) flank steak, sliced thin against the grain
• 1/4 cup cornstarch
• 3 tablespoons vegetable oil, divided
• 2 teaspoons fresh ginger, minced
• 1 tablespoon garlic, minced (about 3 cloves)
• 1/2 cup low-sodium soy sauce
• 1/2 cup water
• 1/2 cup dark brown sugar, packed
• 1/2 teaspoon Diamond Crystal kosher salt
• 1/2 cup green onions (scallions), cut into 1-inch pieces

Directions

1. Slice the flank steak against the grain into 1/4-inch thick bite-sized pieces.
2. Toss the sliced beef with cornstarch in a large bowl until every piece is evenly coated. Let it sit for 10 minutes so the starch clings to the meat.
3. In a small bowl, whisk together the soy sauce, water, dark brown sugar, and kosher salt until the sugar dissolves.
4. Heat 2 tablespoons of vegetable oil in a large cast-iron skillet or wok over high heat until it just starts to smoke.
5. Add the beef in a single layer, cooking in batches to avoid crowding. Sear for 1-2 minutes until crispy and browned, then flip and sear the other side for 1 minute. Fish the beef out and set aside.
6. Turn the heat down to medium. Add the remaining tablespoon of oil, then sauté the minced garlic and ginger for 30 seconds until fragrant.
7. Pour in the soy sauce mixture. Bring to a simmer and let it bubble for 2-3 minutes until it starts to thicken slightly.
8. Return the beef to the skillet along with the green onions. Toss rapidly for 1 minute until the glossy glaze clings to the crispy beef. Serve hot.

Notes

• Salt Conversion: This recipe specifies Diamond Crystal kosher salt. If you are using fine table salt, cut the measurement in half (use 1/4 teaspoon) to avoid an overly salty glaze.
• The Science of Velveting: Coating the beef in cornstarch protects the delicate protein matrix from the intense heat of the skillet, keeping the meat incredibly tender while creating a rough surface for the sauce to cling to.
• Workflow Warning: Garlic and ginger burn in seconds on high heat. Have your sauce whisked and ready to pour into the pan before you even think about tossing them into the hot oil.
• Storage Behavior: Leftovers will lose their shatteringly crisp texture in the fridge as the starch gelatinization absorbs moisture, but the flavor actually deepens and tastes even better the next day.

Serving Suggestions

Serve this rich, savory beef over a bed of fluffy white rice to soak up every drop of that glossy glaze, or pair it with some fresh sides to round out the meal.

• Steamed Jasmine Rice (the classic vehicle for soaking up the sweet and savory sauce)
• A side of our comforting Bok Choy Garlic Ginger Soup to balance the richness
• Steamed broccoli florets tossed in sesame oil and toasted sesame seeds
• A light, refreshing Cucumber Onion Salad to cut through the sweet glaze
• Warm, stir-fried Sticky Garlic Chicken Noodles for an epic takeout feast at home

Storage and Reheating

Let's be completely honest: this beef is at its absolute peak the second it slides out of the skillet. That crispy, starch-dusted crust is fragile, and it will inevitably soften as it sits.

Do not panic, though.

Store leftovers in an airtight container in the fridge for up to three days. The flavors actually deepen overnight.

To reheat, skip the microwave entirely because it turns the beef rubbery. Instead, flash-fry it in a hot, dry skillet for two minutes to revive some of that lost texture.

Ingredient Substitutes

If you don't have everything in your pantry, don't worry—this recipe is highly adaptable to what you have on hand.

1. Flank Steak: You can easily swap this for skirt steak, sirloin, or even thinly sliced chicken breast.
2. Dark Brown Sugar: Light brown sugar or coconut sugar works beautifully, though dark brown sugar provides the deepest molasses undertone.
3. Soy Sauce: Tamari or coconut aminos can be used for a gluten-free alternative, though you may need to adjust the salt levels.
4. Cornstarch: Arrowroot powder or potato starch can be used in a 1:1 ratio to achieve a similar crispy coating.

I hope this becomes your new Friday night savior, just like it did for me after my stove-top catastrophe. It is fast, incredibly satisfying, and miles better than waiting for a delivery driver. Let me know how your batch turns out, and don't forget to crank that heat!