Preheat oven to 350�F / 180�C. Grind poppy-seed. Grind the coconut too. Separate eggs. Beat egg whites until hard peaks form. Mash bananas and grate apple. Mix them with the yolks ground poppy-seed coconut and baking powder. Carefully fold in egg whites. Pour the mixture into a tray and put it in the preheated oven for 30 minutes to bake. Let it cool down before serving.