Grilled John Dory with Marjoram

• 1 kg (2 lbs) John Doty fillets, skinned

Heat half the oil in a frying pan or skillet, preferably nonstick, and grill the fish in the oil over a medium heat, skin side up, for 3 minutes each side, until the flesh is becoming opaque in colour. Remove the fish to hot plates using a slotted spatula. Deglaze the pan with the vinegar, add the tomato dice and marjoram and cook for 1 minute.

Add the rest of the oil, and salt and pepp