Preheat your oven to 250°F (120°C).
Peel the carrots and slice them lengthwise into thin strips, about ¼-inch thick.
In a large bowl, combine carrot strips with pumpkin puree and olive oil. Mix until coated evenly.
Arrange the coated carrot strips on a parchment-lined baking sheet in a single layer.
Bake in the preheated oven for 2-3 hours, flipping halfway through, until the carrots are dried and chewy.
Let the carrot chews cool completely before serving them to your dog.
