Oh sure, you get upvotes; but when I cook and eat three twins,…
Did you put them in a pan or did you make the mistake of putting them in a oven

Mutant chicken farm

That really is food porn

It’s more common in hens that are either just beginning to lay or just at the end of their fertility. Maybe this producer is just starting up with new hens? Leghorns are also more likely to have double yolks and they lay white eggs.
Did you buy a carton where they’re all double yolks? Some places do sell those
I do three eggs each morning I’ll get back to you tomorrow. it may have I buy local eggs so it might have just been a mix-up but I’ll check

I’ve not had one in years. I’m sure I read or heard something about them shining light through eggs now to see if they’re double yolkers and then they separate them.

Also possible I imagined that…

I used to buy flats of 2.5 dozen eggs at a time at a little roadside stand. All of them were double yolk, sometimes triple. These would have been rejects from egg producers. As far as I know, the reason you don’t typically get them in the supermarket is because they shine a light through the eggs during processing to check for this and remove the ones they find.
I buy eggs in a supermarket but come from a local supplier it could have been a mixed up tray of eggs I have three every morning I’ll check tomorrow