Spicy Mongolian Beef (Extra Chili)
There’s nothing quite like a truly satisfying, deeply flavourful meal that brings everyone to the table with anticipation. Today, I’m sharing my absolute favourite recipe for Spicy Mongolian Beef, but with an extra kick of chili that truly elevates it. This isn’t just another stir-fry; it’s a symphony of sweet, savoury, and fiery notes that dance on your tongue, making it an unforgettable experience.
I remember the first time I tried a version of Mongolian beef years ago, and while I enjoyed the sticky sauce, I always felt it needed a bit more oomph, a proper warmth that lingers. After countless experiments in my kitchen, adjusting ratios, playing with spices, and perfecting the searing technique, I finally landed on this recipe. This version, with its generous dose of chili, is the one my friends always ask me for after trying it at dinner parties, and honestly, my kids absolutely devour this every time I make it, despite the heat!
The beauty of this Spicy Mongolian Beef (Extra Chili) lies in its balance. The tender, thinly sliced beef coated in a glossy, rich sauce, punctuated by the vibrant heat of fresh and dried chilies, creates a dish that’s both comforting and exhilarating. It’s a fantastic option for a weeknight dinner when you want something special without too much fuss, or for entertaining when you want to impress without spending hours in the kitchen. Let’s get cooking!
Recipe Overview
- Prep time: 20 minutes
- Cook time: 25 minutes
- Total time: 45 minutes
- Servings: 4-6
- Difficulty: Medium
Why You’ll Love This Spicy Mongolian Beef (Extra Chili)
- Intensely Flavourful: A rich, sweet, and savoury sauce with a bold, lingering chili warmth that truly satisfies.
- Tender, Juicy Beef: Perfectly seared beef slices that remain wonderfully succulent thanks to a clever marinating technique.
- Quick & Rewarding: Despite its depth of flavour, this dish comes together relatively quickly, making it ideal for busy evenings.
- Versatile Serving Options: Fantastic with a variety of sides, from steamed rice to noodles or even a fresh salad.
- Customisable Heat Level: Easily adjust the amount of chili to suit your preference, from a gentle warmth to a fiery inferno.
Ingredients You’ll Need
- 500g beef sirloin or flank steak, thinly sliced against the grain
- 2 tablespoons cornflour (cornstarch)
- 1 tablespoon neutral oil (like vegetable or sunflower oil), plus extra for frying
- 1 medium onion, thinly sliced
- 6-8 dried red chilies (e.g., Sichuan chilies), stems removed
- 3 cloves garlic, minced
- 1 tablespoon fresh ginger, grated
- 2 green chilies (e.g., bird’s eye), thinly sliced (deseed for less heat)
- 100ml soy sauce (light)
- 80g light brown sugar
- 60ml water or beef stock
- 1 tablespoon rice vinegar
- 1 teaspoon sesame oil
- Spring onions, sliced, for garnish
- Toasted sesame seeds, for garnish
Tip: Slicing beef thinly against the grain is crucial for tenderness. Partially freezing the beef for 20-30 minutes before slicing can make this task much easier.
Equipment You’ll Need
- Large frying pan or skillet
- Sharp knife and cutting board
- Mixing bowls
- Wooden spoon or spatula
How to Make Spicy Mongolian Beef (Extra Chili)
- Prepare the Beef: In a medium bowl, toss the thinly sliced beef with 2 tablespoons of cornflour until each piece is lightly coated. Then, add 1 tablespoon of neutral oil and mix well. The beef should look slightly pasty and slick, ready for searing. This cornflour coating is our secret to tender beef and a thicker sauce.
- Make the Sauce: In a separate bowl, whisk together the soy sauce, light brown sugar, water or beef stock, rice vinegar, and sesame oil. Stir until the sugar is completely dissolved. The mixture should be a deep brown liquid, smelling sweet and savoury. Set this aside.
- Sear the Beef: Heat a large frying pan or skillet over high heat. Add enough neutral oil to generously coat the bottom (about 2-3 tablespoons). Once the oil is shimmering and you see a slight wisp of smoke, add about half of the beef in a single layer. Don’t overcrowd the pan! Sear for 1-2 minutes per side until the beef is beautifully browned and caramelised, with a delicious sizzle and a rich, meaty aroma filling your kitchen. Remove the seared beef to a plate and repeat with the remaining beef.
- Sauté Aromatics and Chilies: Reduce the heat to medium. Add the sliced onion to the same pan and cook for 3-4 minutes until softened and translucent, emitting a sweet, pungent smell. Add the dried red chilies, minced garlic, grated ginger, and sliced green chilies. Sauté for another 1-2 minutes until the garlic is fragrant and the chilies start to release their vibrant spice, making your nose tingle pleasantly. Be careful not to burn the garlic.
- Combine and Thicken: Pour the prepared sauce mixture into the pan with the aromatics. Bring it to a gentle simmer, stirring constantly. You’ll notice the sauce starting to thicken within a minute or two, transforming into a glossy, dark amber liquid that coats the back of your spoon. This is the cornflour from the beef working its magic!
- Finish the Dish: Return the seared beef to the pan, tossing gently to coat every piece evenly with the rich, spicy sauce. Cook for just 1-2 minutes more, ensuring the beef is heated through and shimmering with the sauce. The sound of the sauce bubbling around the beef and the sight of its glossy finish tells you it’s ready.
Tips From My Kitchen
- Slicing Beef Against the Grain: This is paramount for tender beef. The muscle fibres in meat run in one direction; slicing across them shortens these fibres, making the cooked beef much easier to chew and preventing it from becoming tough. I often partially freeze the steak for about 20-30 minutes beforehand, which makes it much firmer and easier to get those really thin, uniform slices.
- Don’t Overcrowd the Pan: When searing the beef, it’s tempting to throw it all in at once, especially if you’re in a hurry. However, overcrowding the pan lowers the temperature drastically, causing the beef to steam rather than sear. This results in grey, tough beef instead of beautifully caramelised, tender pieces. Always cook the beef in batches, ensuring each piece has direct contact with the hot pan.
- Cornflour Coating is Key: The cornflour isn’t just for thickening the sauce; it’s a vital part of tenderising the beef. It creates a protective coating that locks in moisture during searing, keeping the beef juicy. It also helps achieve that lovely, slightly crisp exterior. Don’t skip this step!
- Balance the Heat: This recipe is called “Spicy Mongolian Beef (Extra Chili)” for a reason, but heat preference varies greatly. For less heat, deseed the fresh green chilies and reduce the number of dried chilies. For more fire, add a pinch of chili flakes along with the fresh chilies, or even a dash of chili oil at the end. Taste as you go and adjust.
- Fresh Ingredients Make a Difference: While dried spices have their place, using fresh garlic and ginger really elevates the aroma and depth of flavour in this dish. Grate your ginger just before adding it to preserve its vibrant, pungent notes, and mince your garlic finely so it disperses its flavour throughout the sauce.
- Proper Sauce Consistency: The goal is a glossy, thick sauce that clings to the beef, not a watery liquid. If your sauce seems too thin, you can make a quick cornflour slurry (1 teaspoon cornflour mixed with 2 teaspoons cold water) and stir it into the simmering sauce gradually until it reaches your desired consistency. If it’s too thick, a splash of water or beef stock will loosen it up.
Delicious Variations to Try
- Spicy Version: To truly amp up the heat, consider adding a teaspoon of chili flakes along with the dried chilies, or a few dashes of your favourite hot sauce (like sriracha) when you add the main sauce mixture. For a smoky heat, a pinch of smoked paprika can also be a wonderful addition.
- Vegetarian/Vegan Option: This recipe adapts beautifully! Substitute the beef with firm tofu, pressed and cubed, or thick slices of portobello mushrooms. Marinate the tofu/mushrooms in a little soy sauce and cornflour before searing. Ensure you use vegetable stock instead of beef stock in the sauce.
- Different Protein: While beef is traditional, this sauce works wonderfully with other proteins. Try thinly sliced chicken breast or thigh for a Spicy Mongolian Chicken, or even prawns for a quicker-cooking option. Adjust cooking times accordingly; chicken will need slightly longer than prawns. For another fantastic beef dish, you might also enjoy my Aromatic Beef Biryani Rice Dish.
What to Serve With Spicy Mongolian Beef (Extra Chili)
- Steamed Jasmine rice or brown rice
- Noodles (e.g., egg noodles or rice vermicelli)
- Blanched or steamed broccoli, green beans, or asparagus
- A simple side salad with a light vinaigrette
- Cauliflower rice for a lower-carb option
Frequently Asked Questions
How can I make the beef even more tender?
Beyond slicing against the grain and coating with cornflour, marinating the beef for an extra 15-30 minutes with a tiny pinch of bicarbonate of soda (baking soda) can significantly tenderise it. Just be sure to rinse it thoroughly before adding the cornflour.
Can I prepare components of this dish in advance?
Absolutely! You can slice the beef and coat it with cornflour and oil, storing it in the fridge for up to 24 hours. The sauce mixture can also be whisked together and kept chilled in a sealed container for a couple of days, making weeknight cooking even faster.
What if I can’t find dried red chilies?
If dried red chilies are unavailable, you can substitute with a combination of fresh red chilies (more than the green ones listed) and a teaspoon of good quality chili flakes. Adjust the amount to your desired heat level, tasting as you go.
How do I store leftovers and reheat them?
Store any leftover Spicy Mongolian Beef in an airtight container in the refrigerator for up to 3 days. To reheat, gently warm it in a pan over medium heat with a splash of water or stock, or in the microwave until heated through, ensuring the beef doesn’t dry out.
Can I add vegetables to this dish?
You certainly can! While this recipe focuses on the beef, adding vegetables like sliced carrots, bell peppers, or snow peas will make it a more complete meal. Stir-fry them with the onions and aromatics until tender-crisp before adding the sauce. For more veggie-packed inspiration, take a look at my Healthy Veggie Fried Rice Recipe.
Spicy Mongolian Beef (Extra Chili)
An extra-spicy take on the classic Mongolian beef, featuring tender, cornflour-coated beef strips seared until caramelized and tossed in a savory-sweet sauce with dried red chilies, fresh green chilies, garlic, and ginger. Quick to prepare and bursting with heat and flavor.
Ingredients
Method
- Prepare the Beef: In a medium bowl, toss the thinly sliced beef with 2 tablespoons of cornflour until each piece is lightly coated. Then, add 1 tablespoon of neutral oil and mix well. The beef should look slightly pasty and slick, ready for searing. This cornflour coating is our secret to tender beef and a thicker sauce.
- Make the Sauce: In a separate bowl, whisk together the soy sauce, light brown sugar, water or beef stock, rice vinegar, and sesame oil. Stir until the sugar is completely dissolved. The mixture should be a deep brown liquid, smelling sweet and savoury. Set this aside.
- Sear the Beef: Heat a large frying pan or skillet over high heat. Add enough neutral oil to generously coat the bottom (about 2-3 tablespoons). Once the oil is shimmering and you see a slight wisp of smoke, add about half of the beef in a single layer. Don't overcrowd the pan! Sear for 1-2 minutes per side until the beef is beautifully browned and caramelised, with a delicious sizzle and a rich, meaty aroma filling your kitchen. Remove the seared beef to a plate and repeat with the remaining beef.
- Sauté Aromatics and Chilies: Reduce the heat to medium. Add the sliced onion to the same pan and cook for 3-4 minutes until softened and translucent, emitting a sweet, pungent smell. Add the dried red chilies, minced garlic, grated ginger, and sliced green chilies. Sauté for another 1-2 minutes until the garlic is fragrant and the chilies start to release their vibrant spice, making your nose tingle pleasantly. Be careful not to burn the garlic.
- Combine and Thicken: Pour the prepared sauce mixture into the pan with the aromatics. Bring it to a gentle simmer, stirring constantly. You'll notice the sauce starting to thicken within a minute or two, transforming into a glossy, dark amber liquid that coats the back of your spoon. This is the cornflour from the beef working its magic!
- Finish the Dish: Return the seared beef to the pan, tossing gently to coat every piece evenly with the rich, spicy sauce. Cook for just 1-2 minutes more, ensuring the beef is heated through and shimmering with the sauce. The sound of the sauce bubbling around the beef and the sight of its glossy finish tells you it's ready.
Notes
For less heat, deseed the green chilies. Use a high smoke-point oil for searing. Do not overcrowd the pan when searing the beef to ensure a good caramelized crust.
I hope this Spicy Mongolian Beef (Extra Chili) recipe becomes a firm favourite in your home, just as it has in mine. There’s something incredibly satisfying about creating a dish with such vibrant flavours and textures. Don’t be shy with the chili if you love a good kick – it truly transforms this classic. Give it a try, and let me know in the comments below how it turned out for you!
