Start this recipe by preparing the file pastry cups. Grease 2mini-muffin trays with butter. Place a sheet of file pastry over each tray, pressing into the muffin holes. Grease the file with butter and then cover with another sheet of file pastry. Press the file pastry into the holes again and cut the pastry between each muffin cavity to separate. Brush the file pastry all over again with the remaining butter. These are Prepare the filling by mixing together the mincemeat, cranberries, orange zest and alcohol. Place the puff pastry sheets onto your work top and spread the filling all over with a palette knife. Roll the puff up the pastry sheets like a Swiss roll, and cut into slices, 1 cm thick. Place a piece into the prepared file pastry cups and brush them with the beaten egg. Sprinkle over the flaked almonds and bake in a hot oven at 200`c for about 15-20 minutes, or until golden brown. Serve the mini mince pies dusted with icing sugar.