My grandma has been waiting all fall/winter for duck eggs so I could make deviled duck eggs. Now that I finally have enough to make some I need some advice. How much longer should I cook them? and How old should they be? I found a previous thread on this and know that they are not for everyone. I know when I make them from store bought chicken eggs I usually wait 2-3 wks so they peel really easy. Once I used some I just bought a few days before and those eggs looked terrible after I got done peeling them. I was too embarrassed to use them! Thanks for all your help!