My wife has got me a wonderful gift. I hate boiling eggs because I like them well done, so to speak, and the times people say never really works. And it depends on the altitude you are at, in the cabin at 450 m the time is different to when we are in Stockholm at 30 m above sea level.
So she’s got this wonderful egg timer for me. It is a piece of resin plastic that you put in the pot where you have the eggs that need boiling. As the warmth reaches further and further into the timer it goes white. There is a scale that shows how hard boiled your egg now is and so it makes it very easy to keep track of it.
This is what it looks like when put in before boiling starts
This is what it looks like after a minute of boiling
Eggses are now well done!
Oh and as you can see, one of the eggs cracked but did not spill. Adding a bit of salt to the water helps and vinegar also works for coagulating any spill if the egg cracks. Just a tip.