Throw all the spices, salt and sugar into the water.
Put on fire and bring to a boil, boil for 5 minutes and then put to cool.
If frozen, pre-defrost the fish.
Cut off the head and take out the insides. Wash well.
Put the mackerel in the cooled brine.
Leave in a cool place for 3 days. Pickled mackerel at home is ready, cut into pieces and serve.