IMHO really rare, but then happened with several eggs from the same batch.

Frying pan with a fried egg that has two yolks
you are viewing a single comment's thread
view the rest of the comments
[–] 5 points 9 months ago (3 children)

You can tell before cracking the egg?

  • source
  • parent
  • hideshow 3 child comments
  • [–] 3 points 9 months ago

    I think some chickens are more likely to lay them than others (due to age, or genetics). After that the eggs are somewhat larger, and you can check by shining a light through it

  • source
  • parent