of liquid running throughout. achieve this by cooking medium eggs 5 minutes, large eggs 6 minutes, and extra large eggs 7 to 8 minutes.
hard-boiled eggs have a firm white and firm yolk. achieve this by cooking medium eggs 12 minutes, large eggs 17 minutes, and extra large eggs 19 minutes.
place the eggs in cold water. as soon as the eggs have finished cooking, remove them from the water with a slotted spoon and dunk them into a bowl of cold ice water.
let the eggs sit for at least 10 minutes in the ice water.
this is not a crucial step, but dunking the eggs in cold water will stop the cooking 