Cooking fish fillets like this on the BBQ is super simple and fun to do. If you don’t have blue cod, you can use the likes of snapper, terakihi or gurnard.

Their smoked cod’s roe is a favourite. This dip is big and bold and superbly rich – as delicious smeared on toast or used as a dip for raw fennel, radish or salty crisps, as it is with these ...