Prepare your palate for an extraordinary culinary journey! This recipe for Grilled Flat Iron Steak with Crying Tiger Sauce promises a symphony of bold flavors – spicy, savory, tangy, and aromatic – that will leave a lasting impression. Don’t worry, despite its intriguing name, this vibrant Thai dipping sauce is famously delicious, not literally made from tigers! It’s an adventurous and deeply satisfying meal that transcends the ordinary, perfect for those seeking to elevate their grilling game.
For those who appreciate classic steak preparations, don’t miss our exquisite Grilled Porterhouse Steak recipe, a timeless favorite that celebrates the natural richness of beef.

Table of Contents
- What is a Flat Iron Steak?
- Why Choose Flat Iron Steak for This Recipe?
- What is Crying Tiger Sauce? (Nam Jim Jaew)
- The Legend of the Crying Tiger
- Step 1: How to Master the Crying Tiger Sauce
- Step 2: How to Grill the Perfect Flat Iron Steak
- Steak Doneness Temperature Guide
- Step 3: Slice, Dip, and Serve
- Frequently Asked Questions
- More Steak & Sauce Inspiration
- Steak with Crying Tiger Sauce Recipe
What is a Flat Iron Steak?
The flat iron steak is a remarkable cut of beef, celebrated for its exquisite tenderness and rich flavor, often considered a hidden gem in the butcher’s case. Sourced from the top blade of the chuck primal, this cut is unique because a tough band of connective tissue runs through the middle. Expert butchers carefully remove this tough sinew, resulting in two incredibly tender, flat, and uniformly shaped steaks, giving it its distinctive “flat iron” appearance.
Often lauded as the second most tender cut after the prized tenderloin (filet mignon), the flat iron offers a delightful textural experience without the hefty price tag. It boasts beautiful marbling – those delicate streaks of fat that melt into the meat during cooking, imparting unparalleled juiciness and a deep, beefy flavor. While it’s leaner than a ribeye, its flavor profile is intensely satisfying, delivering that robust, savory essence true steak lovers crave. Its balanced attributes make it an incredibly versatile steak, performing beautifully whether seared, grilled, or broiled.
Why Choose Flat Iron Steak for This Recipe?
The flat iron steak is an ideal candidate for pairing with the bold and complex Crying Tiger Sauce. Its inherent beefiness and tender texture stand up perfectly to the sauce’s intense flavors, creating a harmonious balance. The consistent thickness of the flat iron allows for even cooking, achieving that coveted perfect medium-rare or medium doneness with ease. Furthermore, its affordability compared to other premium cuts means you can enjoy a gourmet-quality meal without breaking the bank, making this an accessible yet impressive dish for any occasion. When choosing your flat iron steak, look for good marbling, a vibrant red color, and a thickness of about 1 to 1.5 inches for optimal grilling results.
What is Crying Tiger Sauce? (Nam Jim Jaew)
Crying Tiger Sauce, known in Thailand as Nam Jim Jaew, is a quintessential dipping sauce that embodies the vibrant and complex flavors of Thai cuisine. It’s far more than just a condiment; it’s a flavor explosion designed to complement grilled meats, particularly beef. This legendary sauce is characterized by a perfect interplay of spicy, savory, tangy, and sweet notes, all balanced by an aromatic freshness that awakens the senses. The depth of flavor comes from its unique blend of ingredients, including the pungent umami of fish sauce, the bright sourness of lime juice and tamarind, the heat of chili, and the nutty earthiness of toasted ground rice.
The inclusion of toasted ground rice, a key component, not only adds a unique texture and nutty aroma but also acts as a subtle thickener, giving the sauce a satisfying body. Fresh shallots and cilantro contribute layers of aromatic complexity, rounding out a truly unforgettable flavor profile. While traditionally known for its fiery kick, the beauty of homemade Crying Tiger Sauce is its adaptability. You can easily adjust the level of spiciness to suit more gentle palates without compromising its rich, savory foundation.
The Legend of the Crying Tiger
The intriguing name “Crying Tiger Sauce” comes from a popular Thai legend. It’s said that the sauce is so incredibly delicious and spicy that even a fierce tiger, after tasting it, would shed tears of joy—or perhaps a few tears of heat! This whimsical story perfectly captures the essence of the sauce: it’s powerfully flavorful, intensely satisfying, and certainly has a kick that demands attention. When paired with the rich beefiness of a perfectly grilled steak, the vibrant, contrasting flavors create a culinary harmony that truly lives up to its legendary name.

Dad’s Signature Seasonings
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Step 1: How to Master the Crying Tiger Sauce

Creating the Crying Tiger Sauce from scratch is a rewarding process that builds layers of flavor. The key is to balance the spicy, sour, sweet, and umami notes, creating a harmonious blend that perfectly complements grilled meats. Before diving in, remember my Easy Chimichurri Sauce for a fresh, herbaceous alternative, but for this recipe, the Thai flavors are non-negotiable!
Toasting the Rice: The Aromatic Foundation
The first crucial step is toasting the rice. This isn’t just for flavor; it also adds a unique texture and acts as a thickening agent for the sauce. Place a dry skillet or pan over medium heat on your stove top or grill. Add about a tablespoon of dry, uncooked glutinous rice (sticky rice) directly to the hot pan. There’s no need for oil here. Patiently stir the rice frequently for 5-7 minutes, allowing it to toast evenly until it turns a beautiful light golden brown and releases a wonderfully nutty aroma. Be careful not to burn it, as burnt rice will impart a bitter taste. Once toasted, remove it from the heat and let it cool slightly.
Grinding the Rice: Achieving the Perfect Texture
Next, transfer the cooled toasted rice to a mortar and pestle. This traditional tool is ideal for grinding the rice into a fine powder, which contributes to the sauce’s characteristic texture and helps bind the flavors. If you don’t have a mortar and pestle, a spice grinder or a small coffee grinder (cleaned thoroughly) can work just as effectively. Grind until the rice is a fine, powdery texture. This powder is essential for both flavor and the slight thickening of the sauce.

Assembling the Sauce: A Symphony of Flavors
Now, it’s time to bring all the vibrant flavors together. Add the wet ingredients directly into the mortar with the ground rice, or into a mixing bowl if you prefer. This includes the savory fish sauce, tangy tamarind paste, and freshly squeezed lime juice. Fish sauce provides the essential umami and saltiness, tamarind paste offers a unique sweet-sour depth, and fresh lime juice brightens the entire profile with its citrusy zest.
Follow with the fresh aromatics and spices: crushed red pepper flakes, thinly sliced shallots, and fresh cilantro. The pepper flakes provide the heat; adjust the quantity to your personal preference. While some authentic recipes call for potent bird’s eye chilies, I’ve opted for crushed red pepper flakes for broader appeal and easier heat control. If you’re feeling daring and love intense spice, a teaspoon of finely minced bird’s eye chili can be added. Finally, incorporate some brown sugar. This is crucial for balancing the heat and sourness, adding a subtle sweetness that completes the flavor profile. Mix all the ingredients thoroughly until well combined. Allow the sauce to sit for at least 15-20 minutes for the flavors to meld and deepen. This sauce is also fantastic with my Grilled Steak Crostinis!

Step 2: How to Grill the Perfect Flat Iron Steak
The beauty of this dish lies in the simplicity of the steak preparation, allowing the vibrant Crying Tiger Sauce to truly shine as the star. A perfectly cooked flat iron steak is tender, juicy, and richly flavored, creating the ideal canvas for the sauce. Here’s how to achieve grilling perfection:
Steak Preparation: Simple Perfection
Begin by patting your flat iron steak thoroughly dry with paper towels. Removing excess surface moisture is critical for achieving a beautiful, crispy sear. Next, drizzle a light coating of olive oil over the steak. This not only helps with searing but also acts as an excellent binder for your chosen seasoning. For unparalleled flavor that enhances the beef’s natural taste, generously season both sides of the steak with Dad’s Steak Seasoning. Its unique blend of butter and herbaceous notes provides a fantastic foundation without overpowering the meat. Allow the seasoned steak to rest at room temperature for about 20-30 minutes before grilling; this helps ensure more even cooking.

Grilling Technique: High Heat for a Perfect Sear
Preheat your grill to a high temperature, aiming for around 450°F (232°C). High heat is essential for creating a beautiful, flavorful crust through the Maillard reaction, locking in the steak’s juices. Once your grill is piping hot, place the seasoned flat iron steak directly on the grates over direct heat. For an even cook and a superior crust, flip the steak frequently, every 1-2 minutes. This method promotes more consistent heating throughout the meat and builds a fantastic exterior without burning. Continue grilling for a total cook time of 10-15 minutes, depending on the thickness of your steak and your desired level of doneness. Always use a reliable meat thermometer to accurately gauge the internal temperature, ensuring your steak is cooked exactly to your liking.
Steak Doneness Temperature Guide
Achieving your preferred steak doneness is crucial for a perfect meal. Use an instant-read thermometer inserted into the thickest part of the steak for accuracy. Remember that the internal temperature will rise by 5-10 degrees Fahrenheit during the resting period (carryover cooking), so remove your steak from the grill a few degrees below your target.
- Rare: 115-120°F (remove at 110-115°F)
- Medium-Rare: 125-130°F (remove at 120-125°F)
- Medium: 135-140°F (remove at 130-135°F)
- Medium-Well: 145-150°F (remove at 140-145°F)
- Well-Done: 150-155°F (remove at 145-150°F)

Step 3: Slice, Dip, and Serve
The final steps are just as important as the cooking process in ensuring a truly exceptional eating experience. Proper resting and slicing techniques will maximize the tenderness and juiciness of your grilled flat iron steak.
The Art of Resting Your Steak
Once your flat iron steak reaches its desired internal temperature, remove it from the grill and place it on a clean cutting board. It is absolutely vital to allow the steak to rest for at least 10 minutes before slicing. This seemingly simple step is a game-changer for any cooked protein. During grilling, the muscle fibers contract, pushing the juices to the center of the meat. Resting allows these juices to redistribute throughout the entire steak, resulting in every bite being incredibly tender, moist, and flavorful. Cutting into it too soon will cause those delicious juices to run out, leaving you with a drier, tougher steak.
Slicing Against the Grain
After resting, the next crucial step is slicing the steak properly. For flat iron steak, this means slicing thinly and directly *against the grain*. The grain refers to the direction in which the muscle fibers run. Cutting against these fibers shortens them, making the meat much easier and more pleasant to chew. If you cut with the grain, even the most tender steak can taste tough. Look closely at your steak; you’ll see faint lines running in one direction. Orient your knife perpendicular to these lines and slice into thin, uniform pieces, about 1/4 to 1/2 inch thick. This technique ensures maximum tenderness in every succulent bite.
Dipping and Serving: The Ultimate Experience
Arrange your beautifully sliced flat iron steak on a platter, ready to be enjoyed. Serve it immediately with the prepared Crying Tiger Sauce on the side for dipping. Each piece of tender, beefy steak, when dipped into the vibrant, spicy, and tangy sauce, creates an explosion of flavor that is truly unforgettable. This dish pairs wonderfully with a side of steamed jasmine rice, a fresh green salad, or grilled vegetables to complete your authentic Thai-inspired meal. Garnish with a sprinkle of fresh cilantro for an added touch of color and aroma. Enjoy this bold and exciting culinary creation!

Frequently Asked Questions
While we highly recommend the flat iron steak for its balance of tenderness, beefy flavor, and value, this Crying Tiger Sauce is incredibly versatile. You can honestly use almost any cut of beef, from flank steak or skirt steak for a chewier texture to more premium cuts like sirloin or even ribeye. The sauce’s bold flavors complement a wide range of meats beautifully. It also pairs wonderfully with grilled chicken, pork, or even firm tofu!
Absolutely! Customizing the heat level is one of the great advantages of making this sauce at home. To reduce the spiciness, simply use half of the crushed red pepper flakes listed in the recipe, or even less if you prefer a very mild sauce. You can always add more a pinch at a time until it reaches your desired kick. For an even milder version, consider replacing some of the red pepper flakes with a milder paprika for color without the heat.
Yes, the Crying Tiger Sauce can be made ahead of time, and its flavors often improve upon sitting! Prepare the sauce as directed and store it in an airtight container in the refrigerator for up to 3-4 days. This allows the ingredients to fully meld, deepening its complex taste. Give it a good stir before serving, and add a tiny splash of fresh lime juice or fish sauce if it needs a little refresh.
This dish pairs wonderfully with simple sides that let the steak and sauce shine. Classic choices include steamed jasmine rice, sticky rice, or brown rice. For vegetables, consider grilled asparagus, roasted broccoli, or a fresh, crisp cucumber salad to complement the rich flavors. A light, refreshing green salad with a simple vinaigrette also works perfectly to cut through the richness.
Absolutely! While grilling imparts a fantastic smoky flavor, you can achieve excellent results pan-searing your flat iron steak indoors. Heat a heavy-bottomed skillet, preferably cast iron, over medium-high heat until it’s smoking lightly. Add a tablespoon of high smoke-point oil (like canola or avocado oil), then sear the seasoned steak for 3-5 minutes per side, flipping frequently, until it reaches your desired internal temperature. Ensure good ventilation, as it can get smoky!
More Steak & Sauce Inspiration
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Ribeye Cap Surf & Turf
Beef
Steak and Shrimp Dinner
Beef
Grilled Tomahawk Steak
Beef
Beef Tataki
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Steak with Crying Tiger Sauce
Ingredients
Steak Ingredients
- 1.5 lbs Flat iron steak
- 1/2 tbsp Olive oil
- 2 tbsp Steak seasoning
Crying Tiger Sauce Ingredients
- 1 tbsp Glutinous rice
- 1.5 tbsp Brown sugar
- 2 tbsp Fish sauce
- 2 tbsp Tamarind paste
- 3 tbsp Freshly squeezed lime juice
- 1 tbsp Crushed red pepper flakes (adjust to taste)
- 1/4 cup Fresh cilantro, chopped
- 1 Small shallot, thinly sliced
Instructions
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To make the Crying Tiger Sauce: Place a dry skillet over medium heat on the stove or grill. Add the glutinous rice and toast until golden brown and fragrant, stirring frequently (about 5-7 minutes). Be careful not to burn it.
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Using a mortar and pestle (or a spice grinder), grind the toasted rice into a fine powder.
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To the powdered rice, add the fish sauce, tamarind paste, freshly squeezed lime juice, crushed red pepper flakes, sliced shallot, and chopped fresh cilantro.
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Add the brown sugar and mix all the sauce ingredients together thoroughly. Let the sauce sit for at least 15-20 minutes for flavors to meld. Set aside.
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For the steak: Pat the flat iron steak dry with paper towels. Drizzle some olive oil over the steak and generously season with steak seasoning on all sides. Allow the steak to rest at room temperature for 20-30 minutes.
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Preheat your grill to a high temperature, around 450°F (232°C), for direct heat cooking.
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Place the seasoned steak directly on the hot grates. Grill for a total of 10-15 minutes, flipping the steak every 1-2 minutes for even cooking and a great crust.
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Remove the flat iron steak from the grill once it reaches an internal temperature of 120-125°F (for medium-rare) and let it rest on a cutting board for 10 minutes. The temperature will rise further during resting.
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Slice the steak thinly against the grain and serve immediately with the Crying Tiger Sauce for dipping. Enjoy!
Notes
- Any cut of beef will work wonderfully with this sauce. Its versatility also extends to chicken and pork.
- To make the sauce less spicy, simply reduce the amount of crushed red pepper flakes by half, or adjust to your personal taste preference.
- For an extra layer of flavor, consider using freshly toasted and ground bird’s eye chilies instead of crushed red pepper flakes if you enjoy an authentic, intense heat.
- If you don’t have tamarind paste, you can substitute with a little more lime juice and a tiny pinch of brown sugar, though the flavor profile will be slightly different.
Nutrition
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