Hansel & Gretel weren't abandoned by their parents for lack of food, they were disowned because they were evil little monsters! They stalked the forest they were abandoned in looking for people to rob to support their candy addiction. What happened when they meet a sweet old woman with an entire house made of candy?!
Thanks to the little old lady's cleverness, she survived her encounter with the wretched Hansel and Gretel. Brunhilda (that was the little old lady's name) told the children of her candy cottage and offered to take them there if they promised not to kill her until after they'd eaten. Once at the cottage, the gluttonous children forgot all about Brunhilda and ate and ate until they'd eaten themselves into an eventually fatal sugar coma.
The End. ;-)
Hansel, Gretel & Brunhilda: http://www.dolldivine.com/LotR-Hobbit/LadySky-2454414