These are fun to make on a play date with a friend as you can divide up the parcels to fill and assemble.
300g apples, chopped
75g soft brown sugar
0.5 teaspoon vanilla extract
2 packs 320g ready rolled puff pastry
1 medium free-range egg, beaten
1 teaspoon Demerera sugar (optional)
Preheat the oven to 180C/gas mark 4.
Place the apples in a medium pan with the soft brown sugar. Cook over a medium heat, for 5 minutes, or until the apples are soft. Set aside to cool for 5 minutes. Stir in the blackberries and vanilla extract.
Cut the pastry into 6 x 10cm rectangles. Using a slotted spoon, divide the fruit mixture, equally, between half the pastry rectangles, leaving a 1-2cm border.
Brush the borders of the topped pastry rectangles with the beaten egg. Place the remaining pastry pieces over the top, pressing the edges down with a fork to seal in the filling. Make 2 slits in the top of each pie to let the steam escape.
Brush the parcels with the beaten egg and sprinkle the Demerera sugar, if using. Bake for 25 minutes or until golden and cooked through. Leave to cool for 5 minutes and transfer to a wire rack.