Preheat the oven to 175 Celsius / 350 Fahrenheit degrees.
Put all the wet ingredients (banana, coconut oil/butter, egg) in a blender or food processor and blend until smooth.
Add shredded zucchini and mix.
Mix all dry ingredients (flour, baking powder, oats and real vanilla powder) in a bowl. Then add to the wet ingredients and mix well.
Carefully add the blueberries to the dough.
Layer a baking tray with parchment paper. Use two big spoons to form cookies from the dough and place them on the parchment paper.
I made 8 big cookies.
Bake in the oven for about 20 - 25 minutes until the cookies are golden brown.