how long to cook a boiled egg
Cook for a further minute if you like your soft boiled eggs a little firmer. For a hard-boiled egg, start the egg in cold water and bring up to the boil. Once the water is gently boiling, set the timer for between 7-10 minutes depending on how well cooked you like your eggs.The longer you boil the egg, the firmer it will be.nce cooked, plunge the hard-boiled egg into plenty of cold water for one minute. Drain and cover with more cold water. This will prevent the egg from over-cooking in its residual heat. Cracking the shell with the back of a spoon during cooling will also make the egg easier to peel.