Thornback Skate with Oil and Vinegar

For the skate

• 1 wing of skate weighing 1 kg (2¼ lb)
• 1 on

1. Choose the wing of a medium-sized thornback skate. Cut off about 2 cm (1 in) of the thin part at the edge of the wing and then divide the wing into four pieces of approximately equal size. Rinse thoroughly to remove all the slime from the skin.
2. Put the skate in a large saucepan and cover with 1 litre (1¾ pints) water. Add the onion and carrot, the crushed peppe