Fish in potato crust

Ingredients for 4:

4 large (or 8 small) fish fillet pieces, total 0.5 lb for serving
4 large potatoes
4 tbsp potato flour
2 eggs
3-4 tbsp oil
1 tsp salt
Spices on taste (dill, parsley, ground black pepper)
1 medium shallot onion

Method:

Wash, peel, and grate potatoes.
Squash juice.
Add eggs to potatoes, and mix well.
Peel onion, and cut it into small cubes.
Add onion to potatoes, and mix well.
Roll fish fillets in potato flour.
After that, pre-heat the skillet with oil.
Make 4 or 8 (depending on a fillet amount) balls from potato-eggs-onions mix.
Place fillets on top of the balls, and press until you have a large potato cake with fillet in the middle. Fillets have to be "surrounded" by the potato mix.
Fry with medium heating until a golden crust forms on the edges.
Serve with vegetable salads.