How to make
Braise the onions in the melted butter.
Mix the mackerel meat with the boiled potatoes, parsley, tomato paste, lemon zest and juice, whipped egg and the spices.
Form meatballs from the resulting mixture, leave them to cool for 1 hour.
Oil a grill and grill the meatballs until ready. Serve with a salad of your choice.
