mongolian beef recipe
This Mongolian Beef is sweet, savory, sticky, and totally better-than-takeout. Tender slices of beef are lightly crisped, then tossed in a glossy brown sugar soy sauce with caramelized onions and a hint of garlic. It’s quick, cozy, and perfect for weeknight dinners or impressing your people without the drama.
Ingredients
For the beef:
- 1 lb 450g flank steak or sirloin, thinly sliced against the grain (pro tip: freeze for 15 mins first, easier to slice!)
- 1/4 cup cornstarch for that crispy coating magic
- 2 –3 tablespoons vegetable oil for searing
For the sauce:
- 1/2 cup low-sodium soy sauce flavor bomb, not salt bomb
- 1/2 cup brown sugar yes, sugar — it’s what makes it sticky heaven
- 1/2 cup water
- 2 cloves garlic minced (don’t skip this, babe — garlic = soul)
- 1 teaspoon ginger grated or finely minced (optional but adds that zing)
- 1/4 teaspoon crushed red pepper flakes if you like a little heat
Veggies & garnish:
- 1 medium onion sliced thin (or 2 if you’re an onion lover like me)
- 2 –3 green onions chopped (for that pop of green magic)
Instructions
Prep your beef like a pro
- Slice your steak thin — trust me, thin slices = tender bites that soak up the sauce. If you slice thick, girl, it won’t caramelize properly. Toss the slices in cornstarch until lightly coated. This is what gives the beef that slight crisp on the outside, but still tender on the inside.
Sear it, don’t sweat it
- Heat your oil in a big skillet or wok over medium-high heat. Add the beef in batches (don’t overcrowd — give them room to crisp!). Sear until golden brown on the edges but still juicy inside. Remove and set aside. Your kitchen is about to smell insane — don’t eat it all straight from the pan… or do, I won’t judge.
Make the saucy magic
- In the same pan, toss in the sliced onions and cook for 2–3 minutes until soft and slightly caramelized. Add garlic and ginger — let them sizzle for about 30 seconds, and your kitchen will smell like restaurant-level goodness.
- Then pour in the water, soy sauce, and brown sugar. Stir it, let it simmer for 2–3 minutes, and watch it thicken into a glossy, sticky sauce. Babe, this is where the magic happens.
Reunite beef + sauce
- Throw that beautiful seared beef back into the pan. Toss it around until every slice is coated in that glossy, sweet-savory goodness. Sprinkle in red pepper flakes if you want a lil’ kick. Let it cook together for another minute — you’re basically creating flavor fireworks at this point.
Garnish like a queen
- Sprinkle chopped green onions over the top, and if you’re feeling extra, a tiny sprinkle of sesame seeds. And babe… do yourself a favor and serve it over steamed rice or noodles. The sauce loves rice; it’s like a love story on a plate.
Notes
• Slice against the grain for tender beef. This makes a huge difference.
• Freeze the steak for 10–15 minutes before slicing — it makes thin cuts way easier.
• Don’t overcrowd the pan or the beef will steam instead of sear. Work in batches.
• Sauce thickens as it cools. If reheating, add 1–2 tablespoons water to loosen it up.
• For extra heat, add ½ teaspoon red pepper flakes or a drizzle of sriracha.
• Want it gluten-free? Use tamari or gluten-free soy sauce.
• Store leftovers in an airtight container in the fridge for up to 3 days.
• Freeze the steak for 10–15 minutes before slicing — it makes thin cuts way easier.
• Don’t overcrowd the pan or the beef will steam instead of sear. Work in batches.
• Sauce thickens as it cools. If reheating, add 1–2 tablespoons water to loosen it up.
• For extra heat, add ½ teaspoon red pepper flakes or a drizzle of sriracha.
• Want it gluten-free? Use tamari or gluten-free soy sauce.
• Store leftovers in an airtight container in the fridge for up to 3 days.