Tanches Braisées à la Tomate et Moutarde

• 4 tench, about 150 g/5 oz each, cleaned and gutted
• 2

Preheat the oven to 190°C/375°F/gas 5. Put the shallots, tomato purée, mustard and tarragon into an ovenproof dish and pour over the white wine. Place the fish on top, add a pinch of salt, cover with greaseproof paper and