Mackerel and Tomatoes on Toast

• about 200 g mixed tomatoes
• 4 cooked medium or 8 small mackerel fillets

Turn the oven to its lowest setting (with the fan on). Halve small tomatoes; cut large ones into wedges. Lay on a baking tray and dry in the oven for 6-7 hours or overnight until they’ve lost about a third of their weight. Ovens vary so check after a few hours.

Break the mackerel into pieces and gently mix with some of their oily cooking liquor and the tomatoes. Season to taste. Toast t