"Hansel and Gretel" is a well-known fairy tale of German origin, recorded by the Brothers Grimm and published in 1812. Hansel and Gretel are a young brother and sister threatened by a cannibalistic witch living deep in the forest in a house constructed of cake and confectionery. The two children save their lives by outwitting her. The tale has been adapted to various media, most notably the opera Hänsel und Gretel by Engelbert Humperdinck and a stop-motion animated feature film made in the 1950's based on the opera. Under the Aarne–Thompson classification system, "Hansel and Gretel" is classified under Class 327.