Mash the cooked sweet potato using the back of a fork.
Incorporate the sweet potato with the peanut butter and oat flour.
Add the water little by little until a dough forms.
Roll out the dough until it's 3mm thick and cut the treats.
Bake in a preheated oven at 180℃/350℉ for 20-30 minutes or until you can lift them from the pan and they're golden underneath.
Let them cool down completely before feeding them to your dog.