So... what does the marmalade look like? I mean the inside or spread on your bread?

Egg salad is not difficult.
It's basically mayonnaise with pieces of egg and you can add something else (small pieces of vegetables like: carrot, pepper, pickle, cucumber, peas.. that's basically it. Sometimes small parts of boiled potato or pieces of meat (some make it with salmon). You could also put mayonnaise on two sandwiches and put the egg and whatever you like between the two sandwiches but it will taste different because if it's a salad it's usually made the day before for a better taste but it's not necessary. It depends on the mayonnaise if people add: mustard, pepper.

I wish you a good breakfast!