01 - Preheat oven to 350°F and line a baking sheet with parchment paper.
02 - In a large bowl, mix grated apple, grated carrot, flour, and oats until thoroughly combined.
03 - Add egg and applesauce to the mixture, stirring until dough forms. If too dry, incorporate water 1 tablespoon at a time until proper consistency is achieved.
04 - On a lightly floured surface, roll dough into sticks approximately 4 inches long and ½ inch thick.
05 - Place sticks on prepared baking sheet with slight spacing between each piece.
06 - Bake for 40 to 45 minutes until sticks are golden brown and firm to the touch. For enhanced crunch, turn off oven and allow sticks to cool inside for an additional hour.
07 - Let chew sticks cool completely before offering to your dog.