Russian olivier salad

This is probably one of the most famous Russian salads, known abroad just as the Russian salad :) Honestly...hm, what I tasted has in fact little to do with what we are used to...
So here you get the recipe of this dish, which is definitely the key player on the New Year table. By the way you can replace the tongue with chicken breast. 

Ingredients:

- 4 boiled potatoes
- 2 boiled carrots
- 5 hard-boiled eggs
- 17,6 oz cooked pork or beef tongue

- 1 small onion, chopped
- 3/4 tsp. salt
- 1 can of peas
- 10 oz pickles
- 2/3 cup mayo

How to: 

1. Cut all the vegetables and meat into cubes.
2. Mix them with the canned peas, chopped onion and mayo, add salt.