Roll out one of four portions of dough on a floured surface with a floured rolling pin till dough is half a centimetre thick.
With a pastry cutter, approximately 15cm or a saucepan lid, cut out circles.
Place on parchment paper as you shape them and cover with a teacloth.
Repeat the process of rolling out the dough and cutting out circles, for all four portions of dough. Use the scraps of dough, too.
On half of each round, place 2-3 tbps of the potato filling. Moisten the edges of dough with a finger dipped in water and fold dough over the filling to form a half-moon. Pleat the edges shut (you can also seal them with a fork).
Press down around filling to force out any air.
Place boulani on parchment paper and cover with a teacloth till ready to fry.
Place oil in a large frying pan or skillet for shallow frying on medium heat.
Fry 2-3 boulani at a time, 1-2 minutes per side or till golden brown.
Transfer to a newspaper or towel paper lined tray to absorb the oil.
Garnish with crushed pink pepper berries and some scallions.
Serve with a green chutney of your choice.