Begin by thoroughly washing the sweet potatoes to remove any dirt. You can peel them if you prefer, but leaving the skin on provides extra nutrients and fiber.

Cut the sweet potatoes into even slices, about 1/4 inch thick. For smaller dogs, you might want to cut the slices into smaller, bite-sized pieces. Consistent thickness ensures even cooking.

Preheat your air fryer to 375°F (190°C) for a few minutes. This step helps start the cooking process off on the right foot, ensuring the treats cook evenly.

Place the sweet potato slices in a single layer in the air fryer basket. It's important not to overcrowd the basket to allow for proper air circulation and even cooking. You may need to work in batches depending on the size of your air fryer.

Cook the sweet potato slices for about 15-20 minutes, flipping them halfway through the cooking time. The exact time may vary based on your air fryer model and the thickness of the slices. You’re aiming for a slightly dehydrated texture that’s chewy but not too hard.

Once cooked, let the sweet potato slices cool completely before offering them to your dog. Cooling is crucial as it brings the treats to a safe temperature for consumption and further firms them up.

Store any leftover sweet potato dog treats in an airtight container in the refrigerator for up to a week, or freeze them for longer storage. Freezing will keep the treats fresh for up to three months, and they can be enjoyed straight from the freezer or thawed for a softer treat.