This is a moderately sweet cypriot pastry with soft cheese inside.
It was not simple to find out the adequate settings for the particle system to do the powdered sugar. I did it with Number 200000.If your machine is too weak (i.e. here: less than 12 GB RAM), you can render it without the sugar (The render time in this case is 30 times less than the whole picture). I used only Blender, Gimp and Crazy Bump. All textures included.