Preheat the grill by lighting charcoal. Allow the coals to stop burning and turn white. This should take about 10-15 minutes.
In a small mixing bowl, whisk together salt and black pepper until fully incorporated.
On a plate or wire rack-lined baking tray, season steak with spice mixture on all sides.
Place steak on the grill and cook for 1-2 minutes, then turn 45 degrees, and cook for another 1-2 minutes.
Flip the steak and cook for 1-2 minutes, then turn 45 degrees, and cook for an additional 1-2 minutes. The internal temperature of the steak should reach 125°F (50°C).