Combine all of the spices in a bowl.
Preheat the grill to medium high.
Brush each side of the steak with oil and then rub the steak with the spice mixture. Let the steak rest at room temperature for 20 minutes.
Place the steak on the grill, and cook for 3 to 4 minutes. Rotate the steak 45 degrees and cook for another 3 minutes. Turn the steak over and cook for 4 to 6 minutes for medium-rare. Transfer the steak to a cutting board and let it rest for 5 to 7 minutes before slicing. Serve the steak thinly sliced across the grain, with the Citrus and Plum Salad, garnished with mint leaves.
Yield: 4 to 6 servings