Whisk everything but the steak into your mixing bowl and mix until everything is evenly combined and blended in.
Place the steak into your plastic bag and drown it in the marinade.
Seal the bag, pressing the air out of the bag as you go along, and then lay it fully sealed within a shallow dish.
Marinate the meat overnight until it chills, giving it a single turn to make sure both sides are evenly coated.
When you are ready to grill, remove the steak from the bag and dispose of the bagged marinade.
Grill the steak on an oiled oven rack, roughly 4″ above the coals and cook for 9-10 minutes.
Turn the steak over and grill the other side for 9-10 minutes. your goal is to reach an internal temperature range of 135°F-140°F for medium-rare meat. Transfer the finished steak to your beef cutting board and give it 10 minutes to rest.
Cut the rested meat across the grain at a diagonal angle, aiming for thin slices.
Serve as is, on sandwiches, in tacos or however else you might fancy enjoying some succulent, thinly-sliced beef.