If steaks are frozen, thaw for about an hour before cooking.
Heat the grill to appropriate setting for barbecue (lower heat is better).
Sprinkle everything but the garlic powder and coriander on the steaks while grill is heating. Lightly shake on the garlic and coriander.
Grill the blank side of steak first for about 7–10 minutes, then flip and repeat.
Cook to desired doneness—for medium cook for about another 5 minutes after the first 14, depending on your heat setting. The internal temperature should be at least 145°F, followed by a 3 minute rest before serving.