Fish cutlets

Ingredients
→ GROUND BLACK PEPPER
→ SALT
→ 2 CUPS FISH BROTH
→ 2 TABLESPOONS BUTTER
→ 2 TABLESPOONS WHEAT FLOUR
→ 2 ONIONS
→ 150 G WHITE BREAD (WITHOUT CRUST)
→ 100 G OF LARD
→ 1 EGG
→ 1 TEASPOON SUGAR
→ 1 KG OF HAKE, COD OR POLLOCK BACK + 200 G OF FISH (OR FISH WASTE) FOR BROTH
Then transfer the cutlets to a saucepan, pour the fish broth (see "Fish broth") (500 g)and put it in the oven for 20-30 minutes, preheated to 180 degrees.