combine all ingredients together to form a sticky dough. cover and keep refrigerated overnight. place dough to a floured working table and divide into 2 portion. roll out flat into rectangle shape. sprinkle chopped chocolate & chocolate chips onto flattened dough. then fold dough into three and cut into size as desired. let to rest for an hour and then brush with egg glaze. finally, bake at 175-180'c for about 20 mins. icing sugar dusting just before serving