1. Place the mackerel fillets into the cucumber and summer cup brine for 30 minutes. 2. Then drain the fillets. 3. Cut them down the middle so you have 8 belly fillets and 8 ‘royal’ fillets.

Tuna is a saltwater fish related to mackerel. There are around eight different ... Canned tuna in the UK is packed in brine, spring water or sunflower or olive oil. Discover our full range of ...

Add the icecubes and when cool add the mackerel – making sure they’re covered. Leave for 30 minutes then remove from brine and pat dry. Brush with oil and sprinkle over the ground coriander ...