Name: Homemade Mongolian Beef Recipe
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Cuisine: Chinese-American
Ingredients: 1 1/2 pounds flank steak, sliced thin against the grain into 1/4-inch thick strips; 1/4 cup cornstarch; 1/4 cup vegetable oil; 1/2 cup low sodium soy sauce; 1/2 cup brown sugar; 1/4 cup water; 2 teaspoons minced fresh ginger; 4 garlic cloves, minced; Pinch of red pepper flakes; 1 bunch green onions (green parts only), cut into 1-inch long slices on the diagonal

Jump to Recipe· 4.4 from 71 reviews

If you’re craving a dish that bursts with bold flavors and tender, juicy beef, you’re in for a treat with this Homemade Mongolian Beef Recipe. It’s a perfect balance of savory soy sauce, caramelized brown sugar, and a touch of spice, all wrapped around thinly sliced flank steak that cooks up beautifully in minutes. Whether you’re cooking for family or hosting friends, this dish promises restaurant-quality taste from the comfort of your own kitchen, with ingredients you likely already have on hand.

Ingredients You’ll Need

A round pan filled with strips of dark brown cooked meat coated in a shiny, rich sauce mixed with bright green chopped spring onions, placed on a white marbled surface; the meat looks tender and the sauce makes it glisten under the light photo taken with an iphone --ar 4:5 --v 7

Gathering the right ingredients is key to nailing this recipe. Each component plays a crucial role, from the tenderizing effect of cornstarch on the steak to the vibrant hint of ginger and garlic that wakes up the sauce. These simple but essential ingredients come together to create the flavors and textures that make this dish so irresistible.

1 1/2 pounds flank steak: Thinly sliced against the grain to ensure tenderness and quick cooking.
1/4 cup cornstarch: Coats the beef for a crispy exterior and helps thicken the sauce.
1/4 cup vegetable oil: Perfect for high-heat searing without overpowering flavors.
1/2 cup low sodium soy sauce: Adds deep, salty umami that’s the backbone of the sauce.
1/2 cup brown sugar: Balances the saltiness with caramel sweetness.
1/4 cup water: Adjusts sauce consistency and helps dissolve the sugar.
2 teaspoons minced fresh ginger: Brings a fragrant, slightly spicy warmth.
4 garlic cloves, minced: Infuses rich garlic flavor throughout the dish.
Pinch of red pepper flakes: Adds a subtle kick without overwhelming heat.
1 bunch green onions (green parts only): Cut on the diagonal for fresh color and crispness.

How to Make Homemade Mongolian Beef Recipe

Step 1: Coat and Prepare the Steak

Start by tossing your thinly sliced flank steak with cornstarch inside a large ziplock bag. This step is essential as the cornstarch not only helps to create a light crispy crust once cooked but also helps thicken the sauce later. Make sure each strip is evenly coated for maximum flavor and texture.

Step 2: Sear the Beef

Heat your vegetable oil in a large pan over high heat until shimmering. Work in batches so you’re not overcrowding the pan, adding the steak in a single layer. Cook for about one minute on each side—your goal is to get just the edges browned, locking in juiciness without overcooking. Transfer each batch to a plate to rest as you finish the rest.

Step 3: Build the Sauce

Now it’s time for your aromatics: toss in minced ginger and garlic to the hot pan, sautéing briefly for about 30 seconds until fragrant. Pour in the soy sauce, brown sugar, and water. Bring this mixture to a gentle boil—it’s the moment when those sweet and savory flavors truly come together. Return the beef strips to the pan, tossing them in this luscious sauce so every piece gets coated.

Step 4: Thicken the Sauce

Cook everything together for a couple of minutes, allowing the sauce to reduce slightly. If you find the sauce needs more thickening, mix 1 tablespoon of cornstarch with 1 tablespoon of cold water to create a slurry, then stir it in and cook until you reach that perfect glossy finish.

Step 5: Finish with Green Onions and Spice

In the final moments, add your green onions and cook just 30 seconds more so they stay crisp-tender, infusing freshness into the dish. Sprinkle the red pepper flakes on top for a hint of warmth, making each bite exciting and complex.

How to Serve Homemade Mongolian Beef Recipe

A round white plate filled with two layers: the first layer is fluffy white rice spread evenly; on top, there is a thick layer of dark brown beef strips coated in a shiny sauce, mixed with bright green pieces of cooked spring onions. The beef looks tender and moist, with visible garlic bits scattered throughout. The plate is placed on a surface with a white marbled texture, beside a pair of wooden chopsticks and a striped cloth. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

For a little extra wow factor, sprinkle sesame seeds or a few more sliced green onions on top right before serving. These little details add a lovely crunch and vibrant color, elevating the dish to something truly special.

Side Dishes

This Mongolian Beef pairs beautifully with fluffy steamed white rice or fragrant jasmine rice to soak up all those incredible flavors. For a veggie boost, consider serving it alongside stir-fried broccoli or snap peas—they add a crisp, fresh contrast that brightens the meal.

Creative Ways to Present

Looking to impress? Plate your Homemade Mongolian Beef Recipe over a bed of fried rice or noodles, garnished with fresh cilantro or sliced chili for a pop of color and an added flavor dimension. You could even serve it in lettuce cups for a fun, hands-on way to enjoy this crowd-pleaser.

Make Ahead and Storage

Storing Leftovers

Keep your leftovers in an airtight container in the refrigerator for up to 3 days. The beef and sauce actually develop even deeper flavor after sitting, making it a fantastic next-day meal solution.

Freezing

You can freeze Homemade Mongolian Beef for up to 2 months. Just make sure to cool it completely before transferring to a freezer-safe container. Thaw overnight in the fridge before reheating for the best results.

Reheating

Reheat gently on the stovetop over medium heat, adding a splash of water if needed to loosen the sauce. This keeps the beef tender and the sauce silky. Microwave reheating works too—just cover and heat in short intervals to prevent drying out.

FAQs

Can I use another cut of beef for this recipe?

Yes! While flank steak is ideal for its tenderness and thin slicing, you can also use skirt steak or sirloin. Just be sure to slice thinly against the grain for the best texture.

Is this recipe spicy?

The recipe includes just a pinch of red pepper flakes, giving a gentle warmth rather than strong heat. You can easily adjust the amount of red pepper flakes to suit your spice preference.

Can I make this recipe gluten-free?

Absolutely! Just substitute the soy sauce with a gluten-free tamari, and you’re good to go without sacrificing any flavor.

What can I use instead of cornstarch?

If you don’t have cornstarch, arrowroot powder or potato starch are great alternatives for coating the beef and thickening the sauce.

How long does it take to make this dish?

This Homemade Mongolian Beef Recipe comes together quickly—usually in about 30 minutes from start to finish, making it perfect for busy weeknights without skimping on flavor.

Final Thoughts

This Homemade Mongolian Beef Recipe is truly a gem to have in your recipe collection. It’s straightforward, packed with flavor, and sure to wow everyone at the table. Once you try it, you’ll see why it quickly becomes a go-to favorite for both casual dinners and special occasions alike. Give it a whirl—you’re going to love every bite!