Savor the savory-sweet magic of Mongolian beef made with tender flank steak, soy sauce, brown sugar, garlic, and a quick sear to caramelized glory. Quick, sticky, super-flavorful, and better than takeout in under 30 minutes!
1/2tspred pepper flakesoptional, more or less to taste
For Cooking & Garnish
3tbsp(45ml)vegetable oildivided
4clovesgarlicminced
1tbsp(15g)fresh gingerminced
4green onionschopped, both white and green parts
sesame seedsfor garnish; optional
steamed rice or noodlesfor serving
Equipment
Large skillet or wok
Mixing bowls
Knife
Tongs or spatula
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Instructions
Slice the flank steak thinly against the grain into ¼-inch slices. If needed, freeze the steak for 20 minutes first to make slicing easier.
Place the steak slices in a bowl and toss with cornstarch until evenly coated. Set aside.
In a small bowl, whisk together the soy sauce, water, brown sugar, and red pepper flakes (if using). Set aside.
Heat 2 tablespoons of vegetable oil in a large skillet or wok over high heat. Working in batches, sear the steak slices in a single layer until browned and just cooked through, about 1–2 minutes per side. Don’t overcrowd the pan. Transfer cooked beef to a plate and repeat with remaining beef.
Reduce heat to medium-high and add the remaining tablespoon of oil to the pan. Add the minced garlic and ginger. Sauté for 30 seconds, stirring constantly, until fragrant and golden.
Pour in the sauce mixture. Allow it to come to a simmer and cook for 2–3 minutes, or until slightly thickened and glossy.
Return the beef to the pan along with the chopped green onions. Toss everything together for 1–2 minutes until well-coated and heated through.
Serve hot over steamed rice or noodles. Garnish with sesame seeds, if desired.
Notes
For make-ahead: Cook and cool, then refrigerate for up to 4 days, or freeze up to 2 months. Reheat gently on the stove or in the microwave with a splash of water as needed.For less sweetness, reduce brown sugar to 1/3 cup. Add more veggies like bell pepper or snap peas if desired. For gluten-free, substitute tamari for soy sauce.