1. Preheat oven to 325°F (160°C).

2. In a bowl, mix mashed banana, peanut butter, egg, and pumpkin purée until smooth.

3. Add oat flour to wet mixture and mix until thick dough forms.

4. If dough is dry, add water 1 tbsp at a time.

5. Roll small amounts into balls, flatten into cookies.

6. Mix carob powder with water to form a paste.

7. Paint paw-pad shapes on cookies using carob mixture.

8. Place cookies on parchment-lined baking tray.

9. Bake for 18-22 minutes, until firm at edges.

10. Cool completely on a wire rack.