Line a baking tray with parchment paper. Set aside.
On a floured surface open the pie dough into a large circle of about 5mm thickness. With a small plate or a medium sized cutter, cut 12cm circles.
Place about 2 tbsps of the pulled rabbit, 1 tsp cheese, 1 tsp caramelised onions and a couple of potatoes in the middle of the circle. Make sure to leave space around the edges of the filling. With a pastry brush, paint the edges of the dough around the filling with the egg wash. This will help you achieve a secure closing of the pies. Fold over the other half of the dough and press the ends together around the filling with your finger. You can either leave them as such or else press them down further with a fork.
Place the pies on the lined baking tray and place in the fridge for about 30 minutes. This step helps the dough to remain closed while baking, although no worries if some of the juices ooze out while baking.
Preheat the oven to 220°C or 430°F.**
Once ready to bake, brush the top and sides of the pies with the egg wash. On the top part of the pies, slit two small cuts with a sharp knife.
Bake the pies for about 20 minutes or until they have a nice golden brown colour. Let the pies cool slightly before serving and enjoy!