It is made mixed with seasonings in the form of herbs, spices and other ingredients, bound with mayonnaise.
[1] A typical egg salad is made of chopped hard-boiled eggs, mayonnaise, mustard, minced celery and onion, salt, black pepper and paprika.
[2] One of the earliest known printed recipes for egg salad sandwiches was published in the 1896 edition of The Boston Cooking-School Cook Book written by Fannie Farmer.
[3] Egg salad can be made creatively with any number of other cold foods added.
[8] A popular variant in Russia and the former Soviet states is salad Olivier.