How to hard boil eggs perfectly:
Place the eggs in a medium saucepan and cover them with tap water. Place on heat, and bring to a boil. As soon as the water is at a rolling boil, turn off and cover the pan with a tight-fitting lid. Set the timer for 6 minutes for medium sized eggs and 7 minutes for large eggs. When the timer goes off, pour out the hot water and recover the eggs with cold water.
To peel the eggs, tap the large end of the egg on the work top to crack, then roll the egg gently between your hand and the work top to crackle the shell. Peel under running tap water and allow the eggs to cool to room temperature.