Fresh Tuna and Tomatoes

• 1 ¾ lb. (800 g) fresh tuna, in one piece (see Note)
• 2 medium (200 <

Peel and slice the onions. Peel the tomatoes and cut them into quarters.

Heat the oil in a large frying pan, brown the tuna on both sides, add the onion, and allow to color lightly, then add the tomatoes, garlic, and bouquet garni.

Cook over moderate heat for 15 minutes, turning once; then add the wine, salt, and pepper. Cover the pan and finish cooking over low heat for 15 minu