Toss the chicken fillet in salted, boiling water and cook until tender. Cut the boiled chicken fillet into cubes.
Hard-boiled eggs. Peel the boiled eggs from the shell and also cut into cubes.
Drain the brine from the jar, get the mushrooms and cut the pears. Send to the fillet and egg. Peel the pickles. Cut into cubes as well. Mix it all together, smeared with mayonnaise. If desired, you can add herbs.