This recipe actually only boils the eggs for a moment. As soon as the water comes to a boil, you can turn off the heat and let the hot water actually cook the eggs. The cook time is really the amount of time that you let them sit in the hot water. This all depends on how cooked you want your eggs. For super hard boiled, keep them in for about 12 minutes. If you want a soft-boiled egg, leave them for only about 4-6 minutes. Once they have sat in the hot water for the desired length of time, be sure to plunk them into an ice bath to stop the cooking.