01 - Preheat your oven to 350°F and line a baking sheet with parchment paper to prevent sticking.
02 - In a large bowl, combine the grated apple, grated carrot, flour, and rolled oats. Mix thoroughly until evenly distributed.
03 - Add the egg and applesauce to the dry mixture. Stir until a dough forms. If the mixture is too dry, incorporate water one tablespoon at a time until the dough holds together.
04 - On a lightly floured surface, roll the dough into sticks approximately 4 inches long and ½ inch thick for uniform baking.
05 - Place the formed sticks on the prepared baking sheet, leaving slight space between each piece to allow for even cooking.
06 - Bake for 40 to 45 minutes until the sticks are golden brown and firm to the touch. For extra crunch, turn off the oven and allow the sticks to cool inside for an additional hour.
07 - Let the chew sticks cool completely on the baking sheet or a wire rack before serving to ensure proper texture and safety for your dog.