Preheat oven to 350°F // 180°C // Gas mark 4. Line a baking sheet with parchment paper and set aside.
Add oats to the bowl of a food processor.
Let machine run for 2 - 3 minutes, until oats are almost flour consistency with a few big pieces left.
Add flour, applesauce, coconut oil, egg, curly parsley and mint to bowl of food processor.
Pulse a few times to break up herbs and move ingredients around.
Run food processor for a few minutes until dough looks uniform.
Sprinkle the countertop with a tablespoon or two of flour, then turn the dough out onto the countertop.
Roll the dough out to roughly 1/8" (1/3 - 1/4cm) thick.
Cut treats out with cookie cutter and place on baking sheet. Bake for 16 - 18 minutes, rotate tray halfway through.
Cool completely before giving to your dog.