Adventure Time The witch's garden

Finn and Jake stumble upon the most amazing walled garden. Instead of flowers, it's full of tasty treats like cupcakes and doughnuts. Unfortunately the witch who owns the garden isn't big on sharing. When she finds out that Jake's been nibbling at her doughnuts, she puts a spell on him that takes away his magical powers. Now Finn has to help his friend rediscover the source of his magic before he's trapped in a human body forever.