Fish Salad "Mimosa"

Ingredients

 * 1 tin of sardines
 * 1 jar of mayonnaise
 * 1 onion
 * 100g of butter
 * 100g of cheese
 * 5 hard-boiled eggs

Directions

 * Separate the whites and yolks of the hard-boiled eggs.
 * Grate the whites into the bowl.
 * Grate the cheese (the 2nd layer).
 * Put the tinned sardines on a plate and crush them with a fork until they get soft.
 * divide the crushed sardines into two halves, and put a half into a bowl, making the third layer. *Cover it with half a jar of mayonnaise.
 * For the next layer grate the frozen butter into the bowl.
 * Chop the onion.
 * Put the chopped onion onto butter.
 * Then put the rest of the sardines, and cover with half a jar of mayonnaise.
 * Finish by grating the yolks onto the top of the salad.
 * Put into refrigerator and let it stay for half an hour.