Emma Postlethwaite, 33, was stunned when she found the enormous 167g (5.9oz) egg which was laid by her hen Wendy on Thursday (3/12).
The secondary school teacher filmed the moment she cracked the egg open only to find another standard-size egg inside.
In the incredible 45-second video, Emma can be heard saying: “Oh, it’s another egg. It’s like a Russian doll.”
She then cracks open the smaller egg, which also has a yolk and white inside, as her two-year-old son Austin points at the pan and says: “Egg”.
The mum-of-two also pops both eggs in the frying pan as her husband Damien, 34, who filmed the video, says: “An egg inside an egg. There you go.”