Chimichurri is a classic Argentinean sauce that pairs perfectly with grilled flank steak. To make the sauce, blend together fresh parsley, garlic, red wine vinegar, olive oil, and red pepper flakes. Marinate the flank steak in the sauce for at least an hour before grilling to infuse the meat with flavor. Serve with additional chimichurri sauce on top for a delicious and tangy finish.
