Place the steak on a baking sheet. Rub the garlic and rosemary seasoning all over the steak
In a small bowl, combine the sea salt, sriracha seasoning, ground mustard, smoked paprika, and black pepper
Sprinkle the combined seasoning mix all over the steak, rubbing and pressing so that it adheres to the meat
Cover the steak with aluminum foil and let it sit in the refrigerator for two hours or up to overnight.
Remove the steak from the refrigerator and let it sit at room temperature for about 30 minutes.
Preheat the grill to 550 degrees (medium-high)
Grill the first side of the steak for 10 to 12 minutes
Flip the steak over and grill the second side another 10 to 12 minutesNote: the total cook time is 20 to 24 minutes. This will give you a very nice charred steak (not burnt) and medium doneness.
Remove the steak and let it rest for 20 to 30 minutes before slicing.
Slice, plate and serve. Enjoy!
Notes
Keep the grill closed as much as possible. I also trim the excess fat from the edges of the steak to minimize flare-ups. You will not lose the flavor if you do this.