Grilled Flank Steak with Chimichurri
Get ready for the most flavor-packed steak experience of your life! This grilled flank steak with vibrant chimichurri sauce combines perfectly charred meat with a fresh, herbaceous kick that’ll make your taste buds dance.

The magic lies in the double-punch of flavor – first from a zesty marinade that tenderizes the meat, then from the bright, garlicky chimichurri that’s basically summer in sauce form. Trust me, this isn’t just dinner – it’s a celebration on a plate.

Ingredients

For the Marinade:
- 2 lb flank steak
- 1/4 cup olive oil
- Juice of 1 lime
- 3 cloves garlic, minced
- 1 tsp onion powder
- 1 tsp salt
- 1/2 tsp black pepper
For the Chimichurri:
- 3/4 cup fresh cilantro, packed
- 3/4 cup fresh parsley, packed
- 1/4 cup olive oil
- 2 tbsp red wine vinegar
- 3 cloves garlic, minced
- 1 tsp salt
- 1/2 tsp black pepper
- 1 pinch red pepper flakes

Instructions

- Combine marinade ingredients in a medium bowl, whisking until well combined. Place flank steak in a shallow dish and pour marinade over, coating both sides evenly. Marinate for at least 30 minutes or up to 12 hours for maximum flavor penetration.
- For the chimichurri, pulse herbs in food processor 3-4 times until roughly chopped. Add remaining ingredients and pulse 4-5 more times until just combined but still textured. (Over-processing will create a paste rather than a sauce.)
- Preheat grill to 450°F (232°C). Clean and oil grates thoroughly to prevent sticking. Allow grill to heat for 10 minutes to ensure proper temperature.
- Remove steak from marinade and pat dry with paper towels (wet meat won’t sear properly). Sear each side for 1 minute at high heat, then reduce temperature to medium (350°F/175°C). Cook an additional 3-4 minutes per side for medium-rare (135°F/57°C internal temperature) or 4-5 minutes for medium (145°F/63°C).
- Transfer steak to a cutting board and tent loosely with foil. Rest for 10 minutes – this allows juices to redistribute throughout the meat. Slice against the grain at a 45-degree angle into 1/4-inch strips.
- Serve immediately topped with chimichurri sauce and a sprinkle of flakey sea salt. For best flavor, let chimichurri come to room temperature before serving.

Smart Swaps
- Use flat iron steak or skirt steak as alternatives
- Replace red wine vinegar with balsamic vinegar for a sweeter profile
- Substitute cilantro with all parsley for a more traditional Argentinian style
Pro Tips
- Bring steak to room temperature 30 minutes before grilling
- Use a sharp knife and cut against the grain for maximum tenderness
- Make extra chimichurri – it keeps for 5 days refrigerated and tastes great on everything