I used mine for an egg for the first time this morning. I usually use the stoneware pan to make an egg for my breakfast sandwich. I have mini bagels so I've been folding up the one that comes out of the stoneware pan. This morning I thought that the ceramic egg cooker would be the perfect size. Well it exploded all over my microwave then when I tried to put it on the bagel it was full of holes from exploding so it fell apart with a big piece hitting the floor!

 

Update on Ceramic egg cooker, READ THE USE AND CARE! I didn't shake it and I cooked it too long. Since making that adjustment it works great! Also have you seen the new Dunkin Hines cakes for one? Those are great for using in this!

 

I have found that if you give the lid a little twist, it stays on better. Although, once the gasket or cooker has moisture, it does not make a tight seal, but it sounds like (from HO) it isn't supposed to seal tightly during cooking. The gasket just helps the steam stay in better.