Flavorful and juicy, this Grilled Flank Steak with Chimichurri is our favorite way to do steak on the grill—bold, herby, and quick enough for a relaxed weeknight meal.
Place the olive oil, vinegar, Worcestershire, Dijon, sea salt, black pepper, rosemary, oregano, and garlic in a food processor or blender. Pulse or blend for 30 seconds to 1 minute.
Place the flank steak in a medium baking dish. Using a fork, pierce the meat a few times on each side. Pour the grilled flank steak marinade over the top and turn the steak a few times to coat evenly. Cover with a lid and refrigerate for at least 1 hour, preferably overnight.
Allow the steak to sit out at room temperature for 30 minutes before grilling. Season the grill (or grill pan) with oil* and preheat to high. When the grill is hot, grill the flank steak, covered, for about 5 minutes (loosely covering with foil helps trap the heat). Flip and cook, covered, for about 4 minutes more. Remove from the grill and allow the meat to rest on a cutting board, tented with aluminum foil, for 15 minutes. Slice the meat as thin as you can against the grain.
For the Chimichurri Sauce
Place all of the ingredients into a food processor or blender and pulse/blend until a chunky sauce forms. Serve along with the steak.
Notes
*Use high-heat oil such as canola.STORE any leftover steak once it has completely cooled in an airtight container in the fridge for up to 3 days. To FREEZE, slice the steak first, then layer with parchment between pieces to prevent sticking. Store in a freezer-safe container or Ziploc bag for up to 2 months.REHEAT gently in a skillet over low heat or wrap in foil and warm in a 300 degrees Fahrenheit (149 degrees Celsius) oven until heated through. Avoid microwaving to prevent the steak from becoming tough.