Process of continuously forming individual product pieces having filler therein and having perforations of substantial size in the top layer thereof. A first continuous flat dough sheet is formed and a natural or artificial filler is periodically deposited on the first continuous flat dough sheet, each...http://www.google.co.uk/patents/US4618498?utm_source=gb-gplus-sharePatent US4618498 - Process for producing latticed pastry products