How do you get this toys recipe?
The discovery of the item says “Witness a display of confectionary conjuration.” It’s probably some new and specific interaction that gives you the schematic but I’m not sure what that interaction is.
I saw the witness part in my book and originally thought it ment to watch a mage conjure food . That was not the case so i came to the forums for help since wowhead has nothing
I’d say give it a day or two for people to figure it out and post a comment on Wowhead, because all the item says it’s is a discovery, as noted above, plus there seems to be another related spell called Eureka! on wowhead that is probably from the discovery itself.
/moo 
You’re right! My bad for getting excited about something and wanting to find out more sooner than later