Gently pull the dough out onto a non floury surface and shape it into a tight sausage (if you are not sure how to do this you can watch a video here). Divide the sausage into 8 equal pieces and then let them rest under a dry tea towel for 15 minutes
Flatten one piece with your hand into a disc about 1/2 cm thick. Brush the edge with water
Place a spoonful of potato masala into the centre of the disc, bring the edges together to form a little parcel and pinch them firmly to seal them. Don’t over fill them!
Turn them over so the seal is down and place them on a baking tray that you have lined with non stick baking paper
Let them rest for an hour
Preheat the oven to 220 degrees.
Brush the tops of the buns with milk and sprinkle with sesame seeds. Bake the buns for 20 minutes and let them cool completely on a wire rack before you bite into them because the filling will be hot! Pack them as an alternative to sandwiches and you will be the coolest person at the picnic.