01 - Preheat oven to 350°F (175°C). Line a baking sheet with parchment paper.
02 - In a large bowl, combine grated apple, grated carrot, flour, and oats. Mix thoroughly until evenly distributed.
03 - Add egg and applesauce to the mixture. Stir until a dough forms. If dough is too dry, add water 1 tablespoon at a time until it comes together.
04 - On a lightly floured surface, roll dough into small sticks approximately 4 inches long and ½ inch thick.
05 - Place sticks on prepared baking sheet, spacing slightly apart to allow for even cooking.
06 - Bake for 40–45 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 on the baking sheet or a wire rack before serving to your dog.