Mongolian beef is a beloved Chinese-American takeout classic: tender strips of beef stir-fried until crispy-edged, then coated in a glossy, sweet-savory sauce packed with garlic, ginger, and green onions. Despite its name, the dish has little to do with traditional Mongolian cuisine—it’s a modern creation popularized by restaurants like P.F. Chang’s. The good news? You can recreate this crowd-pleasing favorite in your own kitchen in under an hour, often with better flavor control and fresher ingredients.
The key to great Mongolian beef lies in three elements: velveting the beef for silkiness, lightly coating and frying it for texture, and balancing the sauce so it’s rich but not overly sweet. This recipe serves 4 when paired with steamed rice and delivers that signature sticky, restaurant-quality finish.
Ingredients
For the beef:
- 1 pound (450 g) flank steak or sirloin, sliced very thinly against the grain (about ¼-inch thick)
- ¼ cup cornstarch (for coating)
- 2–3 tablespoons neutral oil (such as vegetable or canola) for frying
For the marinade (velveting step):
- 1 tablespoon soy sauce
- 1 tablespoon Shaoxing wine (or dry sherry)
- 1 teaspoon baking soda (tenderizes the meat)
- 1 tablespoon cornstarch
- 1 tablespoon water
- 1 teaspoon neutral oil
For the sauce:
- ½ cup low-sodium soy sauce
- ½ cup brown sugar (light or dark)
- ¼ cup water
- 2–3 teaspoons minced fresh ginger
- 4–5 garlic cloves, minced
- 1–2 teaspoons sesame oil
- Optional: ½–1 teaspoon red pepper flakes or dried chiles for a touch of heat
To finish:
- 4–6 green onions (scallions), sliced into 2-inch pieces
- Optional: 1–2 tablespoons hoisin or oyster sauce for deeper umami
To serve:
- Steamed white rice or noodles
Step-by-Step Instructions
- Prepare the beef
For easier slicing, place the steak in the freezer for 15–20 minutes to firm it up. Slice thinly against the grain—this ensures tenderness. In a bowl, combine the beef slices with the marinade ingredients (soy sauce, Shaoxing wine, baking soda, cornstarch, water, and oil). Mix well and let it sit for 15–30 minutes at room temperature (or up to 1 hour in the refrigerator). This velveting technique gives the beef its characteristic silky texture. - Coat the beef
After marinating, add the ¼ cup cornstarch to the beef and toss thoroughly so every piece is lightly coated. Shake off any excess starch before frying. - Prepare the sauce
In a small bowl, whisk together the soy sauce, brown sugar, water, minced ginger, garlic, sesame oil, and red pepper flakes (if using). Set this mixture aside—it will thicken into a beautiful glaze as it cooks. - Fry the beef
Heat 2–3 tablespoons of oil in a large wok or skillet over high heat until shimmering hot. Working in batches to avoid crowding, add the beef in a single layer. Fry for 1–2 minutes per side until the edges turn golden and crispy. Remove the beef to a plate (it will cook further later). If needed, carefully drain excess oil, leaving about 1 tablespoon in the pan. - Combine and finish
Reduce the heat to medium-high. Pour in the prepared sauce and bring it to a simmer. Let it bubble for 1–2 minutes until it thickens slightly and turns glossy. Return the fried beef to the pan, add the green onion pieces, and toss everything together for 1–2 minutes. The sauce should cling to the beef, and the onions will soften slightly while retaining their crunch. - Serve immediately
Transfer to plates over a bed of hot steamed rice. The contrast of crispy beef, sticky sauce, and fresh green onions makes every bite irresistible.
Pro Tips for Success
- Always slice against the grain to keep the beef tender.
- High heat is essential for that quick sear without overcooking the meat.
- If the sauce feels too sweet, add a splash of rice vinegar or reduce the brown sugar next time.
- Leftovers reheat beautifully in a skillet with a little added water to loosen the sauce.
This homemade version often tastes even better than delivery—fresher, less greasy, and customizable to your taste. Give it a try the next time you’re craving bold Asian flavors without leaving the house.
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