Eggs 101:Eggs 101: The Hard-Boiled Egg Era. No panic cooking here. We’ll show you exactly how to hard-boil eggs, from first step to final peel.​ Instructions:​ 1. Place eggs in saucepan large enough to hold them in single layer. Then add cold water to cover eggs by 1 inch. Turn the heat up to high until the water is boiling.​ 2.Remove the saucepan from the burner, then cover the pan. Let the eggs stay in hot water for about 9 minutes for medium eggs; 12 minutes for large eggs; 15 minutes for ext