Eggs

Eggs in the wizarding world serve a variety of purposes, ranging from the mundane to the profoundly magical. They are a common food source, a key component in certain Potions, and, most significantly, the means by which many magical creatures reproduce. The possession and trade of certain types of eggs are heavily regulated by the Ministry of Magic due to the dangerous nature of the creatures they contain.

• Golden Egg: A crucial element of the First Task of the 1994 Triwizard Tournament. It was a large, golden, magically sealed egg that each champion had to retrieve from a nesting mother dragon. The egg contained a clue to the Second Task, which could only be heard when the egg was opened underwater. When opened in the air, it emitted a horrifying shriek. Underwater, it played the song of the Merpeople, revealing the nature of the next challenge.
• Dragon Eggs: The eggs of dragons are classified as Class A Non-Tradeable Goods, making their sale or possession illegal. Rubeus Hagrid illegally acquired a Norwegian Ridgeback egg from a disguised Professor Quirrell in the Hog's Head, which he described as large, black, and rough. He successfully hatched it in his hut's fireplace, naming the creature Norbert. Charlie Weasley's work in Romania involves the study and care of dragons and their eggs.
• Basilisk Eggs: A Basilisk is hatched from a chicken's egg that has been incubated beneath a toad. This method of creation was discovered by the Dark Wizard Herpo the Foul. The existence of such an egg is a clear sign of dangerous Dark Magic being practiced.
• Acromantula Eggs: The eggs of the giant spider Acromantula are also classified as Class A Non-Tradeable Goods by the Ministry of Magic, meaning their trade is strictly forbidden. They are white, soft, and about the size of beach balls. They are valuable on the black market, and Horace Slughorn expressed an interest in obtaining them after the death of Aragog.
• Doxy Eggs: These are small, black, and poisonous eggs laid by Doxies. An infestation of Doxies at 12 Grimmauld Place required the removal of their eggs from the draperies. Fred and George Weasley were known to use Doxy eggs as an ingredient in their Skiving Snackboxes.
• Ashwinder Eggs: An Ashwinder is a serpent born from a magical fire left to burn unattended. It lays blazing hot, red eggs which must be found and frozen with a charm, otherwise they will set fire to the dwelling. The frozen eggs are valuable ingredients for Love Potions and can also be eaten whole as a cure for ague. (Fantastic Beasts and Where to Find Them)
• Runespoor Eggs: The eggs of the three-headed serpent, the Runespoor, are highly sought after by wizards for making certain Potions that are said to stimulate mental agility. The trade of these eggs and the creature itself is heavily controlled by the Ministry of Magic. (Fantastic Beasts and Where to Find Them)

The Department for the Regulation and Control of Magical Creatures at the Ministry of Magic classifies the eggs of dangerous creatures to control their trade. The eggs of creatures like the Acromantula and Dragon are designated as Class A Non-Tradeable Goods, subject to the most severe penalties. The Ban on Experimental Breeding, established in 1965, further restricts the creation of new and dangerous magical species, such as the Basilisk.

In addition to magical varieties, ordinary chicken eggs are a staple food in the wizarding world, just as they are for Muggles. They are frequently served for breakfast in the Great Hall at Hogwarts School of Witchcraft and Wizardry and are a common feature of meals at The Burrow.

• In the film adaptation of Harry Potter and the Goblet of Fire, the Golden Egg was depicted as a complex, mechanical prop with intricate moving parts, reflecting the magical nature described in the book. (film)
• The Fantastic Beasts and Where to Find Them film series introduced Occamy eggs, which have shells of pure, polished silver and are extremely valuable. Newt Scamander carries several Occamy eggs in his magical case. (Fantastic Beasts and Where to Find Them film)