In a medium bowl, whisk all ingredients together until combined. Pour the marinade into a large Ziploc bag, along with your meat. Marinate for at least an hour, or up to 2 days.
Cook the meat according to your liking—just make sure you allow the meat to sit out on counter for 45 minutes before cooking to ensure even cooking.
We love to grill flank steak over medium-high heat for about 4 minutes each side. Allow the meat to rest post grilling for at least 10 minutes.