I have issues hard boiling eggs – or I used to until I found out these secrets. Put your eggs in a pot with cold water, make sure they are completely covered. It’s best to use eggs that are a few days old since you bought them (fresher eggs are harder to peel). Add one tsp of salt to the water to keep the whites from sticking to the shell. Add a tsp of white vinegar to keep that gray ring from forming around the yolk. Bring the water to a rolling boil for a minute. Remove from heat & cover for 15 minutes. Peel under cool running water.