Preheat a frying pan, pour 2 tablespoon. tablespoons of vegetable oil. Put prepared onions in hot oil. Fry, stirring occasionally, over medium heat for 2-3 minutes. Remove from heat, cool.
Soak white bread (bun) in water.
Peel the fish, rinse well, separate the fillet from the bones. Or is it better to buy a ready-made fillet?
Cut the fish fillet into pieces.
Skip fish fillet, fried onion, and a loaf squeezed from water through a meat grinder.
Season the minced meat with salt and pepper.
Mix the minced fish well, beat it in a bowl.
Form minced fish cutlets with wet hands and roll them in breadcrumbs.
Preheat a frying pan, pour in vegetable oil. Put cutlets in hot oil. Fry fish cakes over medium heat, about 4-5 minutes on each side, until golden brown. Add oil as needed.
River fish cutlets are ready. For garnish with fish cakes, I will offer mashed potatoes or rice.