Cod is easily one of the most beautiful kinds of fish, but it’s important not overcook it (which so many people do), as you risk killing the subtle layers of sea flavours. Funnily enough, fresh cod is really hard to find in Spanish markets – in fact, I can’t remember ever seeing it there! What is very popular – and, I have to say, always in my mum’s fridge at home – is salted cod. So, if you can’t get fresh cod, salted cod is absolutely fine to use here.