Mongolian Beef (Better Than Takeout)
Crispy-edged flank steak in a glossy soy–brown sugar sauce with a pile of green onions. Faster than delivery.
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Takeout Mongolian beef is usually gloopy and way too sweet. The fix is simple: slice the beef thin, coat it in cornstarch so the edges crisp, and cook the sauce hard for just a minute so it clings instead of pooling. Toast the aromatics first — that's where the flavor comes from.
Ingredients
- 1 lb flank steak (or sirloin), sliced thin against the grain
- 1/4 cup cornstarch
- 3 tbsp neutral oil, divided
- 1 tbsp fresh ginger, minced
- 4 cloves garlic, minced
- 1/2 cup low-sodium soy sauce
- 1/2 cup water
- 1/3 cup brown sugar
- 1/2 tsp red pepper flakes (optional)
- 6 green onions, cut into 2-inch pieces
- Steamed rice, for serving
Method
- 1
Pat the beef dry and toss with cornstarch until every slice is lightly coated. Let it sit 10 minutes while you prep everything else.
- 2
Whisk the soy sauce, water, brown sugar and red pepper flakes in a bowl. Set it next to the stove.
- 3
Heat 2 tbsp oil in a wok or large skillet over high heat until it shimmers. Add the beef in a single layer (work in batches) and sear 1–2 minutes per side until crisp and browned. Remove to a plate.
- 4
Lower the heat to medium, add the remaining oil, then the ginger and garlic. Toast the aromatics 30 seconds — just until fragrant, not brown.
- 5
Pour in the sauce and let it bubble 2–3 minutes until it thickens enough to coat a spoon.
- 6
Return the beef and add the green onions. Toss for 1 minute so everything gets glossy.
- 7
Serve immediately over steamed rice.
Questions & comments
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