The ingredients in this simple recipe can be switched up a bit to allow for what you have available, and your dog's favorite flavors.
You can make this recipe using all whole wheat flour, or substitute 1/2 cup of oat flour for 1/2 cup of whole wheat.
Oat flour is one of my favorites so I use it in lots of recipes, it adds some extra nutrients and gives a slightly different texture.
If you want crunch, use whole wheat flour and, after turning off the oven, leave treats in there with the door cracked open for an hour or so.
Canned pumpkin works just fine as a 1:1 substitution for applesauce.
If you don't have bone broth in your larder/refrigerator, you can use bouillon, milk or water for the liquid.
Sometimes I throw in 1 tbsp of chopped parsley too.