01 - Preheat oven to 350°F and line baking sheet with parchment paper.
02 - In large bowl, mix grated apple, grated carrot, flour, and oats until evenly distributed.
03 - Add egg and applesauce to mixture. Stir until dough forms. If too dry, incorporate water 1 tablespoon at a time until dough holds together.
04 - On 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 40-45 minutes until golden and firm throughout. For enhanced crunch, turn off oven and allow sticks to cool inside for additional hour.
07 - Let chew sticks cool completely before serving to your dog.