Fillet and peel the perch and grind to the desired consistency in a meat grinder. Finally grind the clove of garlic and onions. Add the egg to the mixture and enough breadcrumbs to make the mixture malleable. Season to taste with the spices and vinegar, add the parsley and let it rest briefly in the refrigerator. Then shape smaller meatballs and fry in the fat until golden brown.
This goes well with potato wedges or mashed potatoes and a light dill sauce.