1. Cut the apples into small cubes, put them in a large bowl and add all the ingredients for the filling.
2. Mix all the ingredients well and put them in a pan.
3. In another bowl put all the solid ingredients together, stir and slowly add the melted butter to make the cookie mixture.
4. Place the mixture over the apple and bake in the oven for 30 minutes at 180 C.
5. Serve with vanilla ice cream.