DO-AHEAD TIP: Marinate steak overnight or for at least 5 hours (see recipe).
In a small bowl, combine first 6 ingredients (garlic through cumin); rub mixture into steak then place it in a large zipper-topped plastic bag; drizzle with olive oil. Seal bag and refrigerate overnight or for at least 5 hours.
Preheat outdoor grill to MEDIUM-HIGH. Remove steak from bag (discarding bag) and grill for 4 to 7 minutes per side or until desired level of doneness is achieved. Transfer steak to a cutting board and let it rest for 10 minutes to redistribute its juices.
Thinly slice against the grain (diagonally); serve.