Quick 30-Minute Mongolian Beef with Sweet Soy Glaze
A simplified version of the classic Chinese-American stir-fry featuring tender strips of flank steak coated in seasoned flour and tossed in a glossy sweet-savory sauce. The beef gets crispy edges from pan-frying before being glazed with a mixture of soy sauce, brown sugar, and aromatics. Fresh ginger and garlic add depth while scallions provide a bright finish. Perfect for weeknight dinners when you want restaurant-quality flavors without the fuss. The sauce thickens naturally as it simmers, creating a coating that clings beautifully to each piece of beef.
Ingredients
- 2 pounds flank steak, thinly sliced
- 1 cup flour
- ½ teaspoon garlic powder
- ½ teaspoon onion powder
- ½ teaspoon coarse kosher salt
- ¼ cup canola or vegetable oil
- 1 medium white onion, quartered
- 2 teaspoons fresh ginger, grated
- 2 teaspoons fresh garlic, minced
- ½ cup water
- ½ cup low sodium soy sauce
- ½ cup light brown sugar
- 4 scallions, cut into 2 inch pieces
Instructions
- 1
Cut beef thinly against the grain into 1/4 inch thick slices and trim excess fat
- 2
Pat beef dry with paper towels
- 3
Whisk together flour, garlic powder, onion powder and salt in large bowl
- 4
Dredge beef slices in flour mixture and shake off excess
- 5
Heat oil in large skillet over medium heat
- 6
Cook beef in batches without crowding for 4-5 minutes until browned on all sides
- 7
Remove cooked beef to plate
- 8
Add onion, garlic and ginger to same skillet and saute for 1-2 minutes
- 9
Stir in water, soy sauce and brown sugar until sugar dissolves
- 10
Bring sauce to low simmer
- 11
Return beef to skillet and toss to coat
- 12
Reduce heat to low and let sauce thicken for 2-4 minutes
- 13
Stir in chopped scallions
- 14
Serve over rice or lettuce
Tips
Slice beef when partially frozen for easier, thinner cuts that cook evenly and stay tender.
Don't overcrowd the pan when cooking beef or it will steam instead of browning properly.
Let the sauce simmer gently to thicken naturally - high heat can make it too thick too quickly.
Good to Know
Refrigerate leftovers for up to 3 days in airtight container
Can prep beef and flour mixture up to 4 hours ahead, keep refrigerated
Best served immediately while beef is crispy and sauce is hot
Common Mistakes
Don't skip patting beef dry or coating won't stick properly
Keep heat at medium to avoid burning the flour coating
Add oil between batches if pan becomes too dry
Substitutions
Gluten-Free Swaps
General Alternatives
FAQ
Can I use a different cut of beef?
Yes, sirloin or skirt steak work well. Avoid tough cuts that need long cooking times as they won't be tender in this quick recipe.
What if my sauce is too thin?
Let it simmer a bit longer to reduce and thicken, or mix 1 tablespoon cornstarch with 2 tablespoons cold water and stir into sauce.
How long will leftovers keep?
Store in refrigerator for up to 3 days. Reheat gently in skillet or microwave, adding a splash of water if sauce has thickened too much.