This Perfect Half-Boiled Egg Cooker is extremely easy to use. It comes in 3 parts – a bottom container to catch water, a plastic container for egg cooking process, and a lid. It is also probably the only half boiled egg cooker that manages to cook a perfect half-boiled egg. HOW TO MAKE : ~Bring the water up to a boil, then lower it to a rapid simmer. ~Add the eggs to the pot, and then begin timing. ~If you're just cooking one or two eggs, five minutes is perfect for a runny yolk, or cook as long as seven minutes for a more firmly set, but still spoonable, yolk.