The Daily Plate

15-Minute Mongolian Beef

Crispy edges, glossy sweet-savory sauce, and beef so tender it barely needs chewing — Mongolian beef is the takeout order everyone fights over, and it is shockingly fast at home. The cornstarch dredge is what gives you those craveable crispy bits. Craving more takeout icons? Our Slow Cooker Mexican Shredded Beef is another flavor bomb. Fifteen minutes to crispy-saucy bliss.

Mongolian beef with crispy beef strips in dark glossy sweet sauce with green onions, served over white rice
Prep time5 min
Cook time10 min
Total15 min
Yield4 servings
CuisineAmerican
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🧺Ingredients

  • 1 lb flank steak, thinly sliced against the grain
  • 1/3 cup cornstarch
  • 1/2 cup low-sodium soy sauce
  • 1/2 cup brown sugar, packed
  • 1/2 cup water
  • 4 cloves garlic, minced
  • 1 tbsp grated fresh ginger
  • 1/2 tsp crushed red pepper flakes (optional)
  • 1/3 cup neutral oil, for frying
  • 4 green onions, cut into 2-inch pieces
  • Cooked white rice, for serving

👩‍🍳Instructions

  1. Dredge the beef. Toss the sliced beef in the cornstarch until every strip is lightly coated; shake off the excess. Let stand 5 minutes so the coating adheres.
  2. Make the sauce. In a bowl, whisk the soy sauce, brown sugar, water, garlic, ginger, and red pepper flakes (if using) until the sugar dissolves.
  3. Crisp the beef. Heat the oil in a large skillet or wok over medium-high heat until shimmering. Fry the beef in two batches 2–3 minutes, turning once, until golden and crisp at the edges. Drain on a paper-towel-lined plate.
  4. Glaze. Pour off all but 1 tablespoon of oil. Add the sauce and bring to a boil; simmer 2–3 minutes until slightly syrupy.
  5. Toss and finish. Return the beef to the pan with the green onions; toss 1 minute until every piece is lacquered in glossy sauce and the onions are just wilted.
  6. Serve. Spoon over steamed white rice immediately — the crispy beef waits for no one.

💡 Mongolian beef smarts

The cornstarch dredge plus hot oil is what creates the crispy edges — do not crowd the pan or the beef steams. Let the sauce reduce until it coats a spoon; it thickens fast once the sugar caramelizes. Despite the name, this is a Taiwanese-American takeout invention, not Mongolian — but nobody at the table will care. Serve immediately for maximum crisp; the coating softens as it sits in sauce.

❓Common questions

Is Mongolian beef spicy?
Traditionally not very — it is sweet and savory. The red pepper flakes here add a gentle warmth; omit for a mild version or double for heat.

Can I make it less sweet?
Reduce the brown sugar to 1/3 cup and add an extra splash of soy sauce. The sauce should taste balanced — sweet, salty, and garlicky.

What cut of beef works best?
Flank steak is ideal sliced thin against the grain. Sirloin or skirt steak also work well.

Can I air-fry the beef instead?
Yes — spray the dredged beef with oil and air-fry at 400°F for 8–10 minutes, shaking halfway, until crisp. Then toss with the reduced sauce.

Crispy Mongolian beef in glossy sweet-soy sauce
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