• Wash the sweet potatoes thoroughly to remove any dirt or debris.
• Slice the sweet potatoes into uniform rounds or strips, about 1/4 to 1/2 inch thick. Thicker slices will result in chewier treats, while thinner slices will be crispier.

Bake

• Preheat the oven to 120C/250F degrees and line a baking sheet with parchment paper.
• Place the sweet potato slices on a baking tray and bake for 2 1/2 to 3 hours, turning over half way for even cooking. The chews are done when they are dry and slightly crisp.

Dehydrate

• Set the dehydrator to the appropriate temperature for drying sweet potatoes. This is typically around 125°F to 135°F (50°C to 57°C) for dog treats. Refer to your dehydrator's manual for specific instructions.
• Arrange the sweet potato slices in a single layer on the trays of your dehydrator, making sure they are not overlapping.
• Dehydrate the sweet potato slices for 6 to 12 hours, or until they are dry and leathery. The exact drying time will depend on the thickness of the slices and the moisture content of the sweet potatoes.
• Check the sweet potato chews periodically during the drying process to ensure they are drying evenly and not becoming too crispy.
• Once the sweet potato chews are cooked, allow them to cool before giving out as a treat.