Have you ever seen one of these? This egg timer takes the guesswork out of boiling an egg. You can find these at stores like Bed, Bath, and Beyond on their kitchen gadget wall or at Amazon.com. And they're only about 5 dollars. Here's how the timer works:
Place your eggs and the egg timer in a saucepan. Cover the eggs with about an inch of cold water. Bring the water slowly to a simmer. As the water heats and cooks the eggs, the timer begins to get a dark ring starting on the outside. Can you see it?
As the dark ring reaches the desired mark on the timer, you know the egg is done! Drain the eggs and rinse under cold water to stop the cooking. Split the eggs down the middle with a small thin knife and scoop the eggs out with a spoon. Top with a little butter if you want and some salt and pepper. Yup! Perfectly cooked soft-boiled eggs (or medium or hard)! Every time!