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 evenly distributed.
03 - Add egg and applesauce to the dry mixture. Stir until dough forms. If dough is too dry, incorporate water 1 tablespoon at a time until it holds together.
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 extra crunch, turn off oven and let sticks cool inside for an additional hour.
07 - Allow chew sticks to cool completely before offering to your dog.