Pull off small dough ball from the main dough.
Place them on a rolling pinboard and roll them up.
Put one tablespoon of filling in the middle of the rolled-up dough.
Enclose the dough and seal the filling well to stop them coming out during the baking process.
Put the sealed dough on the parchment sheet that you have laid on the baking tray.
Decorate the surface of the prepared cookies how you like.
Garnish the surface of them with egg yolk by using a brush.
Preheat the oven until 400F.
Put the cookie`s tray in the oven.
Bake them for 30 minutes until their color change to a golden brown.
Put the plate out of the oven and let the cookies cool down for some minutes.
It is ready.