Preheat the oven to 190°C/375°F/Gas mark 5
Blend together the apple sauce, mashed banana brown sugar and vanilla until fluffy. Stir in the courgette, flour, baking powder, baking soda, cinnamon, salt, nuts, and carob chips.
Drop by heaping teaspoonfuls onto oiled (or sprayed!) cookie sheets and bake for about 17 minutes. Adjust the cooking time as desired so that you get your preferred texture.