Place eggs in a pot of cold water with 1 tsp. Salt and boil them till they are hard-boiled.

Onions can be diced in the food processor and later the mushrooms too. Place onions in a pan and cook on low for one minute to remove the bitter taste. Add pepper. Then pour oil on them and stir. After a few minutes, add diced mushroom pieces. Fry all together.

Peel hard-boiled eggs under cold water. Chop eggs, fried onion mixture, salt, mayonnaise and dill together. The texture should be a fine spread.