It is "perfect for a very large family" - an ostrich egg 24 times the size of a normal hen's.
The eggs come from free-range birds on a Lincolnshire farm
Waitrose, the supermarket chain, has just started selling the eggs which can weigh in at almost 4.4lb (2kg).
Diners are advised that a simple tap of a spoon is unlikely to break the shell - a roasting spike or a domestic drill is more suitable.
And those hoping to "go to work on ostrich egg" might think twice and save that particular treat for the weekend, as they can take an hour to boil.
They can also be hard-boiled, scrambled and fried - with a very large frying pan - just like chicken or duck eggs, said a spokesman.
"They are also very good for meringues because the white is much lighter than chickens' eggs," she added.
Waitrose has introduced the eggs, which cost £15.99, at 19 stores and hopes to attract cooks looking to experiment.
The eggs, from specialist egg supplier Clarence Court, come from free-range birds on a Lincolnshire farm which only lay once every three days or so.
Lisa Rowe, director of Clarence Court, said: "The largest egg of any bird species, this product promises to be talking point at very large breakfast tables across the country."
Recipe suggestions include sliced ostrich egg with a sauce of pine nuts and tarragon and - for the brave - Ostrich Scotch Egg.
(Telegraph)
A box of 6 eggs = £96!
jackfrost
Pro 
to boil them will be the next question so!!
48 to 60 minutes for a soft-boiled egg and 1 to 1.5 hours for a hard-boiled one--at sea level. You might wonder where these numbers come from. . ranchers all over the map were contacted: England, Africa, Canada, Australia, Malaysia, and the USA. That's the answer given.