Dissolve the yeast in warm water with 1/2tbsp sugar and 1/2 tbsp of plain flour. Leave aside for 10 minutes.
Boil the milk and allow to cool down till it is warm to touch. Add sugar, oil and salt.
Mix well with a wooden spoon till the sugar dissolves and add 125g flour and mix to a smooth paste.
Add the beaten egg, yeast and mix. Add the remaining flour and mix well till it forms a smooth dough.
Knead well for 10 mins.
Let it rest till it doubles in volume.
Punch down the dough lightly using your palm and divide them equally.
Flatten them into small discs and fill them with 1 tbsp of the filling. Re-shape them into a ball.Sprinkle the top with sesame seeds.
Let it prove for another 20 mins.
Bake them in a pre-heated oven at 200 degrees for 10 mins. When they start to brown, givethem an egg wash using 1 slightly beaten egg white.