Boil the potatoes in enough water to cover them.

Once the potatoes are cooked, drain and mash them to make a purée.

Drain the tuna and add it to the mashed potatoes. Add salt and mix well.

Shape the mixture into patties with your hands and dip them in beaten egg.

Heat enough oil in a skillet. Once hot, fry the patties until golden brown.

Optional: For extra crunch, coat the patties in breadcrumbs before frying.