In a Blender add all of the marinade ingredients. Blend until smooth
Place the steak in a large ribbed dish. Pour the marinade over the steak. Using your hands (get in there!) Work the marinade around to assure it's covering all of the steak. Cover & place in the refrigerator for at least 4 hours. 8-12 hours is best.
To Grill on the Stove Top: Heat a large cast iron skillet over high heat. Add a tbps of avo oil & lower the heat to medium. Add the steak and cook for 5 minutes per side for medium style steak. Remove & let rest
To Grill on a charcoal or gas grill: Oil the grill grates. Grill steak for 3-5 minutes for medium style steak. Let rest at least 5 minutes before serving