Authentic Swansea Baked Mackerel

Season fresh mackerel fillets. Spread with a thick layer of butter mixed with English mustard and lemon juice.

Press the fillets into a bowl of coarse pinhead oats until well-coated. Place in a baking tray.

Bake at 200°C (400°F) for 12-15 minutes until the oats are golden and crispy and the oily fish is perfectly cooked through.

A sustainable coastal classic from the Gower Peninsula near Swansea.