"Dear Mr. Potter,
We have received intelligence that a Hover Charm was used at your place of residence this evening at twelve minutes past nine."
-- Mafalda Hopkirk, Ministry of Magic (CS2)
"Just our nephew - very disturbed--meeting strangers upsets him, so we kept him upstairs."
-- Vernon explaining why the violet pudding was ruined (CS2).
A special dessert made by Harry’s Aunt Petunia Dursley, described as “a masterpiece of a pudding, the mountain of cream and sugared violets” (CS2).
- It was created on Harry's 12th birthday, alas not for him but for some business acquaintances of Uncle Vernon's, a Muggle couple named Mr. and Mrs. Mason.
- Unfortunately, Dobby the House Elf also showed up on Privet Drive that night, levitating the pudding near the ceiling before smashing it into the floor in a pile of cream. It was all part of Dobby's plan to get Harry expelled for doing underage magic at home so he wouldn't be in danger from a nefarious plot at Hogwarts planned by Lucius Malfoy, Dobby's master (CS2, CS10).
- Harry did receive a warning from the Improper Use of Magic Office, but he was allowed to go back to school.
In the book, the pudding is covered with edible violets dipped in sugar. In the CS movie, the violet pudding resembles a purple and green layer cake with whipped cream and cherries on top, and when it levitates has a white smoke effect underneath like a flying saucer. It is dropped on Mrs. Mason's head instead of being dumped in the floor as in the book.
Some fans have noticed that the movie pudding closely resembles a Rolling Stones album cover from 1969. Interestingly that is about the same year that Petunia and Lily met Severus Snape on the playground as children.