Mongolian beef the way it should be - MORE beef, fewer onions, and a sauce that coats every bite. The air fryer gives the beef those crisp edges you expect from takeout, while the garlic-ginger glaze keeps it bold, glossy, and weeknight-easy without sacrificing flavor.


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Inspirations
One of the first types of restaurants we look for when we move is a Chinese restaurant. Not because we eat Chinese food constantly; however, when the craving hits, it hits hard. So why is it always so difficult to find a good one? Time after time, it feels like we spend way too much money trying to locate the place that finally gets it right. Even then, we don’t mind picking it up ourselves. In fact, while we’re not driving 45 minutes for takeout, we will absolutely drive 20. After all, bringing Chinese food home just feels right. Then, of course, a Mai Tai gets mixed, containers get opened, and suddenly it’s the best night of the week.
Over the last few years, Mongolian Beef has become a must-order-every-time situation. At this point, that’s the order—no pretending otherwise. Meanwhile, Gary is willing to explore the menu; however, I stay locked in like a creature of habit. That said, I never quite understood the onion situation. Sure, I like onions, but I don’t want to play a game of hide-and-seek with the beef. Because of that, we started ordering it with half the onions and extra beef. Naturally, it cost a little more, but it was worth it. Everything felt dialed in… and then we moved. Back to square one. Again.
Since we still haven’t found our place, it finally felt like time to make it at home and take control of the entire situation. That way, the beef could actually be the main character, the crispiness could be just right, and the onions could stay in their lane. Plus, the sauce could be exactly how we like it—because that glossy, savory finish deserves to be spooned over rice like it’s doing important work.
So where to start? Naturally, the brain went straight to the air fryer. Not only could it deliver the crisp texture, but it could also come together quickly without turning dinner into a full production. Still, since this wasn’t a regular rotation recipe yet, a little research was necessary. Beyond choosing the right cut of beef, the goal was that signature finish. That’s where cornstarch comes in. Specifically, it’s part of a technique called velveting, which locks in moisture and helps keep the beef tender while building that crave-worthy exterior. Science, but make it delicious.
From there, the sauce came together easily. Garlic was a given, ginger followed, and soy sauce with brown sugar built that classic sweet-savory balance. However, the onion debate still lingered. Instead of letting them take over the entire dish, onion powder stepped in for flavor, while fresh scallions finished things off. As a result, the beef finally gets top billing—no supporting actor stealing the spotlight.
Now there’s a Mongolian Beef that comes together quickly, crisps beautifully, and actually satisfies the craving without the endless search. Of course, the hunt for a great local Chinese spot isn’t over. In the meantime, though, this version makes staying in feel like the right move.

Instruments
Air fryer — brings the crisp without the mess of frying
Large mixing bowl — where the coating comes together and every piece gets attention
Skillet — turns the sauce glossy, sticky, and ready to hug the beef
Tongs — keeps everything moving without breaking that crust you worked for
Chef’s knife — makes quick, clean slices so the beef stays tender
Cutting board — your prep zone for getting everything ready to go
Measuring cups and spoons — keeps the sauce balanced so nothing overpowers
Microplane or grater — wakes up the ginger and makes the flavor pop
Essentials
Flank steak or sirloin — thin slices that cook fast and stay tender
Cornstarch — the secret to that light crisp on the outside
Soy sauce — deep, savory backbone of the entire dish
Brown sugar — sweetness that turns the sauce glossy and bold
Garlic — the flavor base that makes it smell incredible immediately
Fresh ginger — warmth and bite that make it taste like real takeout
Rice vinegar — sharp lift that keeps the sauce from feeling heavy
Sesame oil — that unmistakable finish you smell before you even taste it
Red pepper flakes — gentle heat that builds, not blasts
Green onions — fresh bite that cuts through the richness
Sesame seeds — final texture and that classic Mongolian look



Pro Tips and Riffs
Faq: Grub Answers and Insights
Air Fryer Mongolian Beef
- Total Time: 30 minutes
- Yield: 2 servings 1x
Description
Crispy-edged air fryer beef tossed in a glossy Mongolian-style sauce with garlic, ginger, and brown sugar. Big takeout flavor, lighter, faster, and built for weeknight cooking.
Ingredients
Beef
1 lb flank steak or sirloin, thinly sliced against the grain
½ teaspoon Kosher salt
¼ teaspoon ground black pepper
3 Tbsp cornstarch
Sauce
¼ cup low-sodium soy sauce
3 tablespoons brown sugar, packed
4 cloves garlic, minced
1 teaspoon grated fresh ginger
½ teaspoon onion powder
1 teaspoon rice vinegar
¼ cup water or beef broth
1 teaspoon sesame oil
1 teaspoon neutral oil (avocado, canola, or grapeseed)
Pinch red pepper flakes
1 teaspoon oyster sauce (optional)
Instructions
- Slice the flank steak in half lengthwise, then slice each piece crosswise against the grain in ¼" thick pieces and pat dry. Season lightly with kosher salt and black pepper.
- Toss beef with cornstarch until evenly coated. Shake off excess so the coating stays light, and let it sit for 5 minutes.
- Preheat air fryer to 400°F.
- Arrange in the air fryer basket in a single layer, working in batches if needed. Lightly spray the coated beef with cooking spray.
- Air fry 10–12 minutes, shaking halfway, until edges are browned and lightly crisp. I like to turn each piece over halfway through to ensure crispiness on both sides.
- While the beef cooks, combine soy sauce, brown sugar, garlic, ginger, onion powder, rice vinegar, water/broth, red pepper flakes, sesame oil, neutral oil, and optional oyster sauce in a skillet over medium heat.
- Bring to a boil and cook for 6-7 minutes, stirring occasionally, until the sauce has thickened.
- Add cooked beef to the skillet and toss to coat. Let it bubble 60–90 seconds so the sauce clings and thickens naturally.
- Taste and adjust with a splash of soy sauce or a pinch of brown sugar if needed.
- Finish with sliced green onions and sesame seeds. Serve immediately.
Notes
Thin slicing matters. Cutting against the grain keeps the beef tender instead of chewy.
Let the cornstarch sit on the beef for a few minutes before cooking — this helps the coating adhere and crisp.
Halfway through cooking, I like to flip each piece of beef individually. It takes an extra minute, but it gives both sides a better sear and keeps the texture consistent. Worth it every time.
If the sauce needs thickening, whisk 1 teaspoon cornstarch with 1 teaspoon water and stir it into the simmering sauce. Let it bubble for 30–60 seconds until glossy and thickened.
The sauce is designed to coat, not pool. If serving over rice, spoon lightly from the pan.
Air fry in batches if needed. Overcrowding steams the beef instead of crisping it.
Leftovers reheat best in a skillet to restore texture — microwaving softens the coating.
- Prep Time: 15 minutes
- Cook Time: 12 minutes
- Category: Dinner
- Method: Air Fryer + Stovetop
- Cuisine: Asian-inspired


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