Start a wood fire with several logs of dry hardwood at least two hours before the scheduled time of dinner.
Take your steaks out of the refrigerator. Put on a plate away from flies and the dog, an hour before dinner time.
Place a grid about 10 cm (4 in.) above the embers.
After at least 10 minutes of preheating the grill, season your steak on both sides and place it on the grill.
Cook for 1 minute and rotate a quarter turn adjusting the height of the grill or the positioning of the steak so that the steak is only kissed by flames and not engulfed by them.
Repeat the rotation 2-3 times until the surface is caramelized.
Turn it over. Now repeat the rotation process on this side.
If you use a cooking thermometer because your steak is thicker, I think the perfect internal temperature is 120F (rare to medium-rare). It will continue continue cooking in the resting period.
Remove the steak and let stand for at least 10 minutes.