The NYT discusses really, really, really fresh eggs.

Mr. Barber, the chef and an owner of Blue Hill in Greenwich Village and Blue Hill at Stone Barns in Pocantico Hills in Westchester County, had just been introduced to the wonders of eggs that are described, with varying degrees of delicacy, as immature, unborn, unlaid or embryonic. In plain English, these are eggs that have not been laid and are sometimes discovered when an elderly laying hen is slaughtered.