Grilled Chimichurri Flank Steak🍖 Main
A robust, beefy flank steak grilled to a perfect medium-rare and heavily draped in a vibrant, garlicky herb chimichurri sauce.
By Marcus Rivera, Kitchen Tips Editor
Shared by the Home Cook Assistant community ยท Reviewed for clarity
Few things are as instantly appetizing as the sight of a perfectly grilled flank steak draped in a brilliantly green, sharp chimichurri sauce. You will quickly discover that this South American classic is the ultimate way to enjoy beef during the warmer months, combining the deep, smoky char of the grill with the bright, acidic punch of fresh herbs and vinegar. Flank steak is an incredibly flavorful cut of meat that benefits tremendously from high, fast heat, developing a deeply savory crust while remaining tender in the center. The star of this dish, however, is undeniably the homemade chimichurri, which takes only minutes to pulse together but delivers a massive hit of garlic and fresh parsley that wakes up the entire palate. I love serving this dish when hosting friends in the backyard, as the striking visual contrast between the rosy pink meat and the vivid green sauce always draws gasps of appreciation. It is a rugged, deeply satisfying meal that feels festive and celebratory without requiring hours of complicated culinary prep.
The most critical step in preparing flank steak is how you handle it after it comes off the hot grill. You absolutely must allow the beef to rest for ten full minutes to retain its juices, and then you must slice it as thinly as possible against the natural grain of the muscle fibers. Failing to slice against the grain will result in tough, chewy pieces, regardless of how perfectly you cooked the meat. If flank steak is unavailable at your local butcher, skirt steak or even a thick sirloin makes a wonderful substitute that pairs just as beautifully with the garlicky herb sauce. This bold, carnivorous main course cries out for a starchy side dish, making crispy roasted potato wedges or grilled corn on the cob the perfect accompaniments to complete the plate. For a fantastic leftover meal, try tucking cold slices of this steak and a smear of the leftover chimichurri into a crusty baguette for an unforgettable lunch sandwich. Do not be afraid to be heavy-handed with the sauce, as its acidic bite is exactly what the rich beef needs for perfect balance.
Ingredients
For the Steak
- 1 (1 1/2 lb) flank steak
- 1 tsp kosher salt
- 1/2 tsp black pepper
For the Chimichurri
- 1 cup fresh parsley, packed
- 1/4 cup fresh cilantro, packed
- 3 cloves garlic, peeled
- 1/4 cup red wine vinegar
- 1/2 cup extra virgin olive oil
- 1/2 tsp red pepper flakes
- 1/2 tsp dried oregano
Nutrition (Per 4 servings)*
* AI-estimated values only โ not a substitute for professional nutrition labeling.
Instructions
Make the Chimichurri
- In a food processor, combine the parsley, cilantro, garlic, red wine vinegar, red pepper flakes, and oregano. Pulse until roughly chopped.
- With the processor running on low, slowly stream in the olive oil until the chimichurri is combined but still retains a coarse texture.
Grill the Steak
- Pull the flank steak from the refrigerator 30 minutes before cooking, patting it dry and seasoning aggressively with salt and pepper.
- Preheat a grill or cast-iron grill pan to high heat.
- Grill the steak for 5 to 6 minutes per side for a perfect medium-rare, or until it reaches an internal temperature of 130 degrees Fahrenheit.
- Transfer the steak to a cutting board and let it rest undisturbed for 10 minutes.
- Slice the steak very thinly against the grain and serve immediately, spooning the fresh chimichurri generously over the slices.
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