Heat the water with half the salt and the kombu. Bring to heavy simmer, not a boil. Gently place the cod fillets in the water and cook on simmer for 3-4 minutes (thin fillet) or 8-10 (thick fillets).

A spicy, aromatic way with lentils that’s redolent of north African cuisine and that pairs wonderfully with white fish, and a rustic Italian pasta Like most people in 1980s Britain, I didn’t really ...