homemade sweet potato chews

i saw this recipe online and thought we try it - sweet potato chewy treats.  recipe: cut a bunch of sweet potatoes into scant 1/4" slices.  put them in the oven straight onto the racks (not on baking sheets).  preheat oven 250 F, and cook for 3 hours.  take them out and let it sit and it'll become hard and chewy.  they are crunchy and emma and dexter loves them! 

yummie!