Everyone believes that boiled eggs are easy to cook. That is technically true. However, really well-done boiled eggs, which shed their shells cleanly are not easy for a person to make if he does not know the proper procedure. This procedure will reliably produce hard-boiled eggs that are near to perfection.
A pinch of vitamin C helps during the cooling phase, to weaken the shells and neutralize any chlorine in the water. So vitamin C is especially good to add if you are using municipal water, which we never recommend.