Sift the flour with salt n rub in butter.

Let it rest for 30 mins.

Roll out the dough and place the pastry margarine in the middle, knock back a few times n let it rest in the fridge for 30 mins.

Roll out the dough make a first single turn roll again make a double turn rest for 30 mins

Roll again make single n double turn n rest.make as many turns as you wish n let it rest overnight or 6 hrs-8 before working on it