I made the doughs here based on a recipe in "Delicacies of Chinatown" book, authored by a lady but unfortunately I don't know her name as it was written in Chinese characters. Luckily the recipes are in dual languages. There are several versions for the dough recipes as I had seen online and in some blogs, but essentially, the concept is similar to french puff pastry where dough and fat are inter-layered to get crispy light flaky pastry. The spiral effect here is achieved by rolling the two types of doughs (water and oil doughs) into a rectangle and rolling it up into swiss roll.
Look really good - 10 Aug 2013