These pastries are found in bakeries and home kitchens throughout Greece and are often eaten at breakfast time or with coffee. They are thought to have originated in Macedonia where the idea had come from Constantinople ( Istanbul ). They can be made with different fillings which meant they offered versatility and flexibility to working families and are quite quick and easy to make. Like many Greek dishes, different regions make their own versions. These ones are filled with the popular semolina custard while others can be made with a sweet cheese filling, which is very similar to Tyropita ( cheese pies). These are also made with Filo pastry which is common today but sometimes puff pastry may be used.