Pre-heat the oven to 200°C (400°F).
Divide the pastry into four (or six) equal portions and roll each into a thin, rough circle.
Place the filling along the centre of each circle, leaving space around the edges. Be careful not to overfill, as you’ll need to pull both sides up to seal.
Bring the long sides together and pinch them to seal. You can use a little water if needed, but I found it unnecessary.
Fold over the edges to create a secure seal. Some juices may escape during baking—this is normal.
Place the pasties on a well-greased or parchment-lined baking tray and bake for about 20 minutes.
Reduce the oven temperature to 175°C (350°F) and continue baking until the pasties are golden brown, about 15-20 minutes.
Remove from the oven and allow to cool slightly before serving. Enjoy warm with chips, mashed potatoes, or on their own as a snack—or let them cool completely and eat them cold.