Preheat a microwave oven for 10 minutes in 180 degrees C
In a mixing bowl mix the grated apple, beaten egg, vanilla essence and sugar
Now add the all purpose flour and baking powder sieving together
Mix the all together gently and add little milk and butter in it.
Butter brush the baking pan and pour the batter in it
Bake it for 7-8 minutes and check after that with a tooth pick if it is completely done and comes out clean
Let it rest for couple of minutes and cool it in a rack
Cut and serve plain