Roll it out to a thickness of just under 1½cm/¾in, in a rectangle that’s about 40-50cm/16-20in long. Have the long side facing you. Cover the dough with a loose layer of ham.
you can also use the basic dough recipe - omitting the cheese, and using plain butter - to make brioche-type loaves or rolls. If you can't find piment d’espelette butter in your supermarket ...