step 1
Hold mackerel by its tail above an open flame until skin blisters and breaks.
step 2
Peel off skin and discard head and tail.
step 3
With a thin bladed knife make a slit along underside of fish. Open like a book and with your palm press firmly to flatten it.
step 4
Discard backbone and skeleton.
step 5
Place fillets in a bowl. Add 1 1/2 tbsps of vinegar. Cover with cold water. Set aside for 10 mins.
step 6
Remove fillets, discarding the liquid. Thoroughly dry with paper towels then cut into thin strips or bite-sized pieces
step 7
Plate up with rest of ingredients.