Preheat oven to 180 C / Gas 4. Lightly oil a loaf pan.
In a large bowl mix flour, baking powder, bicarb of soda, coconut and salt.
In a separate bowl beat together oil, sugar, vanilla sugar and cinnamon until foamy. Grate courgettes and squeeze out any liquid with your hands. Add courgettes and eggs to the oil mixture and mix well.
Add courgette mixture to the dry ingredients and stir until well combined. Pour dough into the prepared loaf pan and bake until a tooth pick inserted in the center of the cake comes out clean, about 1 hour,
Take out of the oven and let cool in the loaf pan for 10 minutes. Turn out and let cool completely on a cooling rack.