Preheat your oven to 180C. Unroll your gluten free puff pastry sheet and cut into 4 equal sized rectangles.
Spread cranberry sauce onto 2 of the rectangles, leaving a small gap around the edge of the pastry. Next add the shredded chicken or turkey, followed by the stuffing and pigs in blanket slices so that everything is evenly spread over the cranberry sauce.
Next make a thick gravy using the gluten free gravy granules and boiling water. Spoon a few teaspoons of the gravy on top of the filling (ensuring not to use too much otherwise the pastry will become soggy) .
Top with the remaining 2 rectangle pieces of pastry to create to 2 pastry pockets. Seal the edges by pressing them together.
Use a fork crimp the edges and then brush with beaten egg.
Bake in the oven for around 25 minutes, until golden brown and crispy. Serve warm.