Sandwiches with Smoked Fish

Ingredients

 * 300 g smoked fish fillet.
 * 2 ea yolks hard boiled.
 * 75 g butter.
 * lemon juice to taste.

Directions

 * Grind fish and yolks in the mincer.
 * Stir in butter and lemon juice to your taste.
 * Spread the mass on a bread slice 1/5 inch thick and cover with another one.