Tuna steaks are expensive but our robust tomato-and-olive relish more than does them justice.
Indoor oven broiling
Prepare steaks as you would for barbecuing. Preheat broiler. Place oven rack about 4 inches (10 cm) from broiler. Brush fish with anchovy mixture and place on a broiling pan. Broil from 5 to 7 minutes per side, brushing often with mixture, until tip of a knife inserted in centre of fish feels warm.