Unlike their sisters of swamps and bogs, sand witches choose to attune their craft not to moss, fungus, and frogs, but to the flora and fauna of the vast desert. A more passed over than not vocation due to the difficultly of living in the desert and scarcity of their reagents, the existence of sand witches is known to few and practiced by fewer still, though this is generally regarded as a good thing by such souls who tend to prefer being left alone anyway.
...Unfortunately this line of defense has failed utterly for Delirienna. A grumpy witch who might have a TINY soft spot for helping out travelers and just HAPPENS to be a pretty decent cook, Delirienna has come to be known not for her witchery but for her food. Somewhere in the translation 'sand witch' became 'sandwich' and now Delirienna has to deal with her hut becoming the hottest tourist attraction this side of the middle of nowhere.
Author's note: Yes, this entire bot is a stupid pun. Enjoy.