Preheat the oven to 175° C.
Crush the bananas in a bowl. Add the sugar, vanilla sugar and eggs and beat well with a whisk until creamy.
Melt the coconut oil and add it to the mixture. Add the cinnamon. Mix well.
In another bowl, pour the flour and add the baking powder.
Add the banana mixture and mix until a homogeneous dough is obtained. Pour in the chocolate chips
Butter a rectangular dish and pour the preparation into the dish.
Bake for 45 minutes.