Spoon sauce over steak and let rest together 5 minutes. To serve, slice steak about ½ inch thick, spoon juices over steak and arrange beets alongside. Serve extra sauce on the side.
Add the flank steak ... Remove the steak from the marinade, pat with a paper towel, and let it hang for a couple of hours to dry. To prepare the sauce, transfer the marinade to a small saucepan ...