Fresh Tuna In a Lemon Caper Sauce
Brush tuna steaks with oil and broil or grill them until cooked through, about 5 minutes on each side.
Meanwhile heat the butter in a frying pan and slowly saute the garlic and onion until softened, about 5 minutes.
Stir in the lemon juice and capers and cook for 1 minute.
Spoon the sauce over the tuna and serve immediately.