Peel and dice 2 apples.
Cut off the tops of the remaining apples, then scoop out the flesh, using a melon baller, leaving about 5mm rim.
In a small bowl, mix the water and cornflour into a paste.
Melt the butter in a small saucepan over medium heat, then add the diced apples, lemon juice, cinnamon and sugar. Cook for about 5 minutes until the apples are tender (not mushy). Add the paste and cook for another minutes or so. Let it cool.
Preheat oven to 190°C.
Put the hollowed out apples onto a baking tray, lined with parchment paper. Fill them with the apple sauce mixture.
Roll out the puff pastry, the using a pizza cutter, cut out long strips. Wrap the filled apples with these looking like a mummy- not too tightly though.
Brush the pastry crust with the milk, then bake for about 20-25 minutes or until the apples are tender and the crust is light brown.
Stick the eyes into the gaps (using dried cranberries, sultanas, marshmallows, sweets etc.)
Serve with a sauce of your choice.