These are my puppy's favorite treats!! I've been trying to come up with stuff that is raw and pure for her because I do believe she has some allergies. I wanted a treat that she enjoyed & didn't add in all the extra junk. You can use one, the other, or BOTH!!!!! The sweet potatoes are more like chews while the apples are more like treats because they don't get quite as hard. These become dense after dehydrating, then when the dog starts to chew them they become chewy, and finally after they've knawed on them for a bit they are gooey!! Dogs do not break down the fruit & vegetable cell walls but these will just pass regardless. She receives plenty of nutrition from her regular meals & I wanted a treat I wouldn't feel bad giving her a ton off....especially during the training process. This recipe makes enough for WEEKS....well I cut them smaller since I have a young one so might not last as long for a big dog. Hope your doggy enjoys!! Punk goes absolutely insane when she hears the bag rustling that the sweet potatoes are in...she LOVES THESE!!