Mongolian Beef is a fast, flavorful stir-fry made with tender slices of seared beef coated in a garlicky, sweet soy sauce. Better than takeout and done in 30 minutes.
1 lb flank steak, sliced thin against the grain
¼ cup cornstarch
2–3 tbsp oil (for frying)
½ cup low sodium soy sauce
⅓ cup brown sugar
½ cup water
4 cloves garlic, minced
1 tbsp fresh ginger, grated
3 green onions, chopped
Optional: red pepper flakes or Thai chili for heat
Toss beef in cornstarch. Let rest 10 minutes.
In a small bowl, whisk soy sauce, brown sugar, water, garlic, and ginger.
Heat oil in skillet over high heat. Sear beef in batches until browned. Remove and set aside.
Pour sauce into skillet. Simmer 2–3 minutes until slightly thick.
Return beef and toss to coat. Cook 1–2 more minutes.
Stir in green onions. Serve hot with rice or noodles.