For Mackerel
- Filet the mackerel and remove bones.
- Mix the salt and sugar together.
- Zest citrus fruits and slice fruits in 5mm slices.
- Lay half of the salt/sugar on a tray.
- Lay the mackerel skin side down on the salt/sugar.
- Sprinkle the zest onto the fish.
- Cover the fish with the remaining salt/sugar.
- Lay the sliced fruits on top.
- Refrigerate for 2hrs.
- Remove from salt/sugar.
- Rinse under cold running water.
- Dry on paper towel.