Combine marinade ingredients in a small bowl and whisk. Place sirloin in a gallon size ziplock bag and pour marinade over steak. Squeeze out as much air as possible and seal bag.
Marinate steak for 3-4 hrs in refrigerator.
Remove steak from marinade and drain excess liquid. Season both sides with Kosher Salt and rest at room temp for 20-30 minutes
Prepare charcoal grill for direct cooking at 550 degrees.
Lightly oil cooking grate and Place steak on grill. Cook for 6 minutes (twist steak half way for grill marks)
Flip the sirloin and repeat the process. Brush the top of the steak with warm Jack Glaze* 2 minutes before removing from grill.
7. Rest the steak for 5-7 minutes before slicing to serve.