Pair taste success. by Erik De Wit City North News - Thursday September 6th 2007   Chocolate is a way of life Bien and Deb Peralta.   The two met at a chocolate factory and have since opened their own business making and selling chocolate brownies and truffles.  They sell their Dello Mano wares at markets and send their distinctive brown and white striped boxes around Australia.   Mrs Peralta draws on her experience as a food scientist at the business at Newstead's Breakfast Creek Wharf.  Her husband makes the brownies and does his best to eat into the profit, admitting he is a chocoholic.  But they would not have it any other way.   "It was always going to be chocolate." he said.  The two learned about the importance of food and packaging while in Italy.  "We loved Italy.  We saw how people prepared the food."  he said.  "People queued up and waited their turn.  Their food was nicely wrapped up.  You felt special just buying a couple of slices of prosciutto."   The two met at Cadbury's marketing department.  They toyed with the idea of setting up their own business for 14 years before taking the plunge.  They will soon add coffee to their business.