Wash and dry the tuna steaks. Season with Kikkoman Teriyaki Marinade sauce, oil, juice and lemon zest and add the peppercorns to enrich the palate. Let marinate for a short time, prepare the fire and light tuna steaks to grill about 5 to 10 minutes, turning them occasionally. Use a brush and go brushing with remaining marinade while grilling.
Preparation time: 15 minutes