Herring Paste with Walnuts

Description
In Romanian: Pasta de heringi cu nuci

Ingredients

 * 1 herring
 * 12 ground walnuts
 * 2 crustless slices of white bread soaked in water with a little vinegar
 * ½ grated onion
 * 1 teaspoon vinegar
 * 3 tablespoon oil

Directions

 * 1) Wash the fish, skin and debone it.
 * 2) Then grind or chop very fine.
 * 3) Place the fish paste in a bowl and mix with the soaked and squeezed bread, gradually adding the oil.
 * 4) After the oil is used up, add the onion, vinegar, walnuts and mix well.
 * 5) Place the mixture on a long serving plate, shaping like a fish.
 * 6) Put the head and tail where they belong.
 * 7) Keep cold until serving.