Preheat oven to 350 ℉. Line a baking sheet with parchment paper or oil baking sheet to prevent sticking.
In a medium mixing bowl add the wet ingredients (egg, applesauce, peanut butter). Using a hand-held mixer blend until peanut butter mixes in until smooth.
In a large bowl, whisk to together the dry ingredients (flour and baking soda).
Add the wet ingredients to the dry ingredients and mix together until combined and forms into dough.
Using a rolling pin, roll dough out onto a floured surface into 1/2 inch thickness. Cut the dough into fun shapes using a cookie cutter or use a knife to cut dough into shapes.
Place cut out treats on the prepared baking sheet and place in the preheated oven for 12 minutes. The dog treats should be slightly golden brown on the bottom.
Transfer baked treats to a cooling rack.
Once cooled, serve to your pup to enjoy!