Heat the oven to 180C/160C fan/gas 4. Brush each salmon fillet with the oil or butter and season well.

Put the salmon fillets in an ovenproof dish. Cover if you prefer your salmon to be tender, or leave uncovered if you want the flesh to roast slightly.

Roast for 10-15 mins (or about 4 mins per 1cm thickness) until just opaque and easily flaked with a fork. Serve with a sprinkling of chopped herbs, lemon slices and steamed long-stem broccoli, if you like.