Ever since I first tried Chimichurri Grilled Flank Steak at a friend’s backyard barbecue, I’ve been obsessed. The tender, juicy steak paired with that tangy, herb-packed chimichurri sauce was unforgettable. I knew I had to recreate it at home. After years of tweaking and testing, I’ve finally nailed it—and I’m here to share all my secrets with you. Whether you’re grilling for a crowd or just treating yourself, this recipe will give you restaurant-quality results every time. Ready to transform your steak game? Let’s dive in.
What Makes Chimichurri Grilled Flank Steak Special
The Argentinian Connection
Chimichurri is a classic Argentinian sauce that’s been a staple of South American grilling for generations. If you enjoyed this, you might also like Steak And Sweet Potato Protein Bowl. It’s bright, zesty, and packed with fresh herbs like parsley and cilantro. When paired with grilled flank steak, it creates a flavor explosion that’s both bold and balanced. The acidity of the sauce cuts through the richness of the steak, making every bite refreshing and satisfying.
Perfect Meat and Sauce Pairing
Flank steak is the ideal choice for chimichurri because it’s lean, flavorful, and absorbs marinades beautifully. The high-heat grilling method caramelizes the outside while keeping the inside tender. Plus, the chimichurri sauce doubles as both a marinade and a finishing sauce, infusing the steak with flavor from start to finish. It’s a match made in grilling heaven.
Why This Chimichurri Flank Steak Recipe Works
The Science of Marinating
Marinating flank steak in chimichurri does two things: it tenderizes the meat and infuses it with flavor. The acidity from the vinegar and lemon juice breaks down the muscle fibers, making the steak more tender. Meanwhile, the garlic, herbs, and olive oil create a bold, aromatic base that seeps into every bite.
High-Heat Grilling Technique
Grilling flank steak over high heat is key to achieving that perfect crust without overcooking the inside. I always preheat my grill to around 450°F and sear the steak for 4-5 minutes per side. This locks in the juices and gives you that beautiful charred exterior. Trust me, it’s worth the wait.
Essential Ingredients for Chimichurri Grilled Flank Steak
Choosing the Right Flank Steak
When selecting flank steak, look for a piece that’s bright red with minimal fat. It should be about 1.5 inches thick for even cooking. If you can, ask your butcher for a grass-fed cut—it’s leaner and has a richer flavor. Pro tip: let the steak come to room temperature before grilling for more even cooking.
Authentic Chimichurri Components
The best chimichurri starts with fresh ingredients. You’ll need parsley, cilantro, garlic, red wine vinegar, olive oil, and a touch of red pepper flakes for heat. Don’t skimp on the herbs—they’re the star of the show. I also like to add a squeeze of lemon juice for extra brightness.
Step-by-Step Chimichurri Flank Steak Guide
Making Perfect Chimichurri
Start by finely chopping the parsley, cilantro, and garlic. Then, whisk them together with the vinegar, olive oil, red pepper flakes, and lemon juice. Let the sauce sit for at least 30 minutes to let the flavors meld. You can make this ahead of time and store it in the fridge for up to 3 days.
Grilling to Perfection
While the chimichurri rests, season your flank steak generously with salt and pepper. Preheat your grill to high heat and brush the grates with oil to prevent sticking. Grill the steak for 4-5 minutes per side for medium-rare, or until it reaches an internal temperature of 130°F. Let it rest for 10 minutes before slicing.
Expert Tips for Tender Grilled Flank Steak
Slicing Against the Grain
One of the most important steps is slicing the steak against the grain. This cuts through the muscle fibers, making each bite tender instead of chewy. Look for the long lines running across the steak and slice perpendicular to them.
Temperature and Timing Mastery
Use a meat thermometer to ensure your steak is cooked to perfection. For medium-rare, aim for 130°F. Remember, the steak will continue to cook as it rests, so pull it off the grill a few degrees below your target temperature. For more information, see Grilling Guide.
Common Mistakes to Avoid with Chimichurri Steak
Cooking Temperature Errors
One of the biggest mistakes is overcooking flank steak. It’s a lean cut, so it can dry out quickly if left on the grill too long. Stick to high heat and keep an eye on the internal temperature. For more information, see Grilling Science & Technique.
Marinade and Sauce Mistakes
Don’t use all the chimichurri as a marinade—save some for serving. The acid in the sauce can break down the meat too much if left for too long. I recommend marinating for 2-4 hours max. For more information, see USDA Meat Safety.
Variations and Serving Ideas for Chimichurri Flank Steak
Alternative Cuts and Preparations
If you can’t find flank steak, skirt steak or hanger steak are great alternatives. You can also pan-sear the steak if you don’t have a grill. Just make sure to get that high heat for a good sear.
Perfect Side Dishes
Pair your Chimichurri Grilled Flank Steak with grilled veggies, a fresh salad, or roasted potatoes. The chimichurri sauce also doubles as a delicious dressing for sides.
Frequently Asked Questions
How long should I marinate flank steak for chimichurri?
Marinate your flank steak for 2-4 hours. Any longer, and the acidity in the chimichurri can start to break down the meat too much, making it mushy. I usually prep the steak and sauce in the morning, marinate it in the fridge, and grill it in the evening for a quick, flavorful dinner.
What sides pair best with chimichurri grilled flank steak?
Grilled veggies like zucchini, bell peppers, or asparagus are fantastic because they soak up the chimichurri sauce beautifully. I also love serving it with a simple arugula salad or roasted potatoes. For a carb-heavy option, try garlic bread or grilled corn on the cob.
Can I use parsley instead of cilantro in chimichurri?
Absolutely! If you’re not a fan of cilantro, you can use all parsley for a more traditional Argentinian flavor. Some people even mix parsley and cilantro for a balanced herb profile. Just make sure to use fresh herbs—they’re the backbone of the sauce.
Why is flank steak ideal for grilling with chimichurri?
Flank steak is perfect because it’s lean, flavorful, and absorbs marinades like chimichurri really well. Its long, flat shape also makes it easy to grill evenly and slice against the grain for tender bites. Plus, it’s budget-friendly compared to other cuts like ribeye or filet mignon.
Why Trust Me?
I’ve been making Chimichurri Grilled Flank Steak for family gatherings and summer barbecues for over 5 years. One of my biggest breakthroughs was realizing that marinating the steak for just 2-4 hours gives the best texture—too long, and it gets mushy. My dad, who’s a tough critic, now requests this dish every Father’s Day. Trust me, once you try this recipe, it’ll become a staple in your grilling repertoire.
Final Thoughts
Making Chimichurri Grilled Flank Steak at home is easier than you think, and the results are worth every minute. The combination of tender steak and vibrant chimichurri sauce is unbeatable. Whether you’re grilling for a crowd or just treating yourself, this recipe is a surefire way to impress. So fire up that grill, grab your ingredients, and get ready to savor the best steak of your life.
What’s your favorite way to enjoy flank steak? Let me know in the comments below!
Chimichurri Grilled Flank Steak
Ingredients
Method
- Pat the flank steak dry and season both sides with salt and pepper. Drizzle with 2 tbsp olive oil and let sit at room temperature for 15 minutes.
- While steak rests, make chimichurri: In a food processor, pulse parsley, cilantro, garlic, vinegar, red pepper flakes, and oregano until finely chopped.
- Transfer herb mixture to a bowl and stir in 1/4 cup olive oil and lemon juice. Season with additional salt if needed.
- Preheat grill to high heat (about 450°F). Grill steak for 4-5 minutes per side for medium-rare (130°F internal temperature).
- Transfer steak to a cutting board and let rest for 5 minutes before slicing against the grain.
- Serve sliced steak with generous spoonfuls of chimichurri sauce on top.
- Store leftover chimichurri in an airtight container in the fridge for up to 5 days.
