From Webkinz Insider Wiki
Monstrosoupy is a stove recipe made with mushrooms, pickles, and raisins.
It was solved by Webkinz Insider member cocoabean on October 16, 2008.
This recipe was solved six months and twenty-six days after its release date.
The Webkinz Newz has this to say about the recipe: "Eating this soup is always an adventure! Monstrosoupy has a very distinct flavor - one you're not likely to forget anytime soon!"