Kitchen Guy

Lightly pierce steaks all over with a sharp knife. Whisk together remaining ingredients and transfer to a large resealable heavy-duty plastic bag. Add flank steaks and seal, pressing out excess air. Marinate steaks at least 6 hours and up to one day.

Prepare your grill for cooking by oiling the grates and setting them 5 to 6 inches over glowing coals. Turn the steaks only once and cook for a total of 12 minutes for medium rare. Transfer to a cutting board and let stand 5 minutes so the juices collect in the center of the meat. Slice the steaks very thin across the grain.

If using a grill pan, cook the steaks for 10 minutes for medium rare, turning only once.