hard-boiled egg
hard-cooked egg

For children 4 and older; each child should come with two hard-boiled eggs.

Each child is asked to take two hard-boiled eggs to the event.

But it's just possible that I might get a hard-boiled egg.

I've seen her eat five and then finish off with a hard-boiled egg.

I like to add some sliced hard-boiled eggs for color.

Parents should take two hard-boiled eggs per child; ages 4 and up.

The hard-boiled eggs went down well, and so did the sandwiches.

He bit off half of a hard-boiled egg brought with the beers.

If you want to be particularly clever, write them on hard-boiled eggs.

If the child chooses a hard-boiled egg, it will have a long life and many of children.