A) They should be "hard cooked eggs" , never boiled.
1. Use tap water warmed to its hottest.
2. Turn stove on to 1 mark above the 1/2 way mark.
3. Add eggs.
4. I leave them on for 22 minutes. This should have little bubbles, just below the boil point coming to the top of the water.
5. Remove from stove and drain.
6. Cover with cold water.
7. Let sit 5 to 10 minutes.
B) My aunt did the cold water start, and I don't think she boiled either. She also did the cover with cold water. Somehow I think this shrinks the egg in the shell.
C) My Aussie cousin told me in person down there last Dec. that she couldn't do hard cooked eggs. So, her late husband had bought her an egg cookers. The one she has now holds a dozen eggs, You put the cover on, plug it in and it cooks the eggs per manufactuers timer. She cooked enough eggs for my breakfast egg my first morning. I got one from the fridge and peeled each one as needed.
One would think if one looked around up here, that electric egg cookers could be found, should that be our preferred option.
........we're both in our 70s.......
:C