Peel the potato, cut into cubes and boil until soft. Mash with 2 teaspoons butter and set aside
Heat 1 tablespoon oil and add the onion. Fry until translucent. Add the garlic, thyme and chili and fry for a minute
Allow the onion mixture to cool a little
Open the can of tuna and drain the liquid, crumble with a fork
Place the mashed potato and onion mixture in a bowl and mix well. Add the tuna and season with salt and pepper
Divide the mixture into 6 equal sized portions or larger if you prefer. Roll them into balls and flatten them on your palm
Dip the tuna fishcakes in some flour, then the egg and roll them in the breadcrumbs
You can refrigerate them for 30 minutes or fry them immediately
Heat 2 tablespoon oil in a pan, on medium heat, and fry the fishcakes until golden brown. About 2 minutes on each side
You can also fry them for a minute and them finish cooking them in the oven for 10 minutes at 180 degrees Celsius