What is the title of this cartoon where two kids wander off in a ...

Bare with me; I only remember some parts of this cartoon when I watched it back in like 1994. Two kids wander off away from their mother- I think a boy and his sister. They walk to a cornfield-esque setting where everything is edible. ...

Source: http://toys.blogofoto.com/2010/08/11/what-is-the-title-of-this-cartoon-where-two-kids-wander-off-in-a-cornfield-where-everything-is-edible/