Sardine Croquettes (Croquetas De Sardinas)

Preheat oil in a frying pan. With wet hands, form balls from the sardine and cassava mixture. Dip each ball into the egg whites, then roll it in the bread crumbs, ensuring it's fully coated. Repeat until all the mixture is used.

Fry the croquettes in the hot oil until they are golden brown on all sides. Once fried, transfer them to a double-lined paper towel to drain any excess oil.