This salad can be made in a jiffy, and you can use pretty much any fish you like – just make sure it’s really fresh! As the fish is cut quite small, you need to serve it within 30 minutes of mixing it all together or it will cure too much. What happens is that the citrus juice cures the fish protein, chemically ‘cooking’ it, changing the colour, texture and flavour to very much that of cooked fish.

The bloodline of a fish is that part of the flesh immediately under the skin, towards