Off a bumpy dirt road in Gaza city, a group of children stood outside a half-open factory door, desperate to get their hands on what was being made inside. "We want chocolate!" they shouted at a worker as he left the Al-Arees factory, which despite daunting obstacles churns out treats ranging from chocolate-covered biscuits to a Gazan version of a world famous spread, dubbed here 'Natalia'. Buckling in the face of candy-crazed kids, the man popped behind the door and returned with enough free chocolate to rot their growing teeth ...