How to Make Mongolian Beef at Home (Step-by-Step Recipe)
Cooking Mongolian beef at home is fast, simple, and satisfying. With just a few easy steps and common pantry ingredients, you can replicate the sweet-savory flavor and crispy texture of your favorite takeout dish. Here’s how to do it.
Prep the Beef
Begin with 1 lb of flank steak, thinly sliced against the grain. This ensures each bite is tender. Once sliced, toss the beef pieces with 1/4 cup of cornstarch, ensuring every piece is evenly coated. Let it sit for about 10 minutes—this resting time allows the cornstarch to adhere better, forming a light crust that crisps beautifully during cooking.
Tips for prepping:
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Slice the steak as thinly as possible to avoid chewiness
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Freeze the steak for 15 minutes beforehand for easier slicing
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Shake off excess cornstarch to avoid clumping in the pan
Make the Sauce
While the beef rests, prepare the sauce. In a small saucepan over medium-low heat, add 2 teaspoons of vegetable oil. Sauté ½ teaspoon of fresh ginger and 3 cloves of minced garlic for about 30 seconds until fragrant—don’t let them brown.
Add the following:
Bring the mixture to a gentle boil, then reduce and simmer for 2–3 minutes until slightly thickened. Remove from heat and set aside.
You can explore how these ingredients work together for flavor by reading more about soy sauce and brown sugar. For similar recipes and presentation ideas, check out Pinterest’s Asian Dinner Ideas.
Cook the Beef
Heat 2 tablespoons of vegetable oil in a large skillet or wok over medium-high heat. Add the beef in small batches, making sure not to overcrowd the pan. Fry each batch for 2–3 minutes per side until browned and crispy. Drain the cooked beef on paper towels.
To learn more about ideal stir-frying conditions, explore wok cooking techniques and the stir-frying method, both essential to mastering Asian dishes like this.
Combine and Finish
Return all cooked beef to the pan and pour the prepared sauce over it. Toss everything together to coat evenly and let it cook for another 2–3 minutes. The sauce will thicken further and cling to the beef, creating that glossy, restaurant-style finish.
Garnish with:
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½ cup sliced green onions (diagonally cut)
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Sesame seeds for a nutty crunch
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Red pepper flakes for optional heat
Serve immediately over steamed jasmine rice, noodles, or with stir-fried vegetables for a complete meal. Browse Pinterest’s Mongolian Beef Recipes for plating inspiration.
Tips for Perfect Mongolian Beef Every Time
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Slice beef thinly and always against the grain
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Let the cornstarch sit on the beef for 10 minutes before frying
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Use high heat and cook in small batches
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Simmer the sauce separately before combining for better texture
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Garnish with fresh scallions and sesame seeds just before serving
Popular Variations of Mongolian Beef
Slow Cooker Mongolian Beef
For a hands-off approach, use a slow cooker. Combine the sliced beef with the sauce ingredients (no need to pre-sear) and cook on low for 4–5 hours. Add green onions during the last 30 minutes of cooking. The result is a more tender, stew-like version perfect for busy weeknights.
Spicy Mongolian Beef
Want heat? Add sriracha, chili garlic sauce, or extra red pepper flakes into the sauce. You can also toss in sliced chili peppers during cooking for a bold kick.
Mongolian Beef with Vegetables
Add vegetables like:
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Broccoli
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Snow peas
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Bell peppers
These can be stir-fried separately or added during the final minutes of cooking for a more nutritious meal.
Healthier Versions
Looking to cut calories or carbs?
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Use cauliflower rice or lettuce wraps
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Reduce brown sugar or substitute with coconut sugar
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Stir-fry instead of deep-frying to lower oil content
These tweaks keep the flavor intact while making the dish lighter and more diet-friendly.
What to Serve with Mongolian Beef
Pair your Mongolian beef with complementary sides to make a full meal. Great options include:
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Steamed jasmine rice or brown rice
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Lo mein or rice noodles
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Stir-fried bok choy or garlic green beans
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Asian-style cucumber salad with sesame oil and rice vinegar
These side dishes help balance the sweet and savory notes of the beef while adding freshness and texture.
How to Store and Reheat Leftovers
Mongolian beef stores and reheats well, making it ideal for meal prep.
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Store in an airtight container in the fridge for up to 4 days
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Reheat in a skillet over medium heat to retain crispiness
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For microwave reheating, cover with a damp paper towel to keep moisture
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Freeze portions in airtight containers for up to 2 months
Just remember to thaw completely before reheating for best results.
Common Mistakes to Avoid
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Using the wrong cut of beef: Avoid tough cuts like chuck or round
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Not slicing thin enough: Thick slices won’t cook quickly and may be chewy
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Skipping the cornstarch: You’ll miss out on the crispy texture and sauce-thickening effect
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Overcrowding the pan: Leads to steaming instead of searing—cook in batches for best browning
Avoiding these pitfalls ensures your Mongolian beef turns out restaurant-quality every time.

Frequently Asked Questions
Is Mongolian beef actually from Mongolia?
No. Despite its name, Mongolian beef originated in Taiwan and is a classic example of Chinese-American cuisine.
Can I use chicken instead of beef?
Yes, chicken works well. Use thinly sliced chicken breast or thighs and follow the same cooking process.
Why is my beef tough?
The most common reasons include cutting with the grain, overcooking, or using a tough cut like round steak. Always slice against the grain and cook quickly over high heat.
Can I make this gluten-free?
Absolutely. Use tamari or a gluten-free soy sauce alternative, and check that your cornstarch is certified gluten-free.
Is Mongolian beef spicy?
Traditionally, it’s not. But you can easily make it spicy by adding chili paste, sriracha, or red pepper flakes to the sauce.