Preheat the oven to 180°C (356°F).
In a bowl, combine coconut flour, flour, and baking powder.
In another bowl, cream the butter and sugar together.
Add eggs one at a time, mixing well after each addition.
Add milk and vanilla extract and mix.
Combine the dry and wet ingredients to make the batter.
Fold in the coconut evenly into the batter.
Pour the batter into a mold and bake in the oven for 30-35 minutes.
After cooling, optionally decorate with coconut flakes.