Preheat oven to 180C/350F. Lightly grease a baking tray.
Lay a sheet of filo on a lightly greased baking tray, brush it with a little melted butter and top it with a second sheet.
Brush with butter again and top it with the third sheet before repeating the whole process with the final sheet of filo.
Crumble the Christmas pudding in a generous rectangle in the centre of your buttered filo and fold in the sides and ends to form a parcel.
Place, seam side down on your baking tin. Brush with a little more butter.
Bake in the preheated oven for 15-20 minutes until the pastry is golden and the filling is piping hot.
Sprinkle with icing sugar and serve!