I'm pretty sure this is not the traditional way to make trahanas. Though they probably taste much the same. If you have patience, I would exhort you to try this. Take good Greek yoghurt. about a cup. Mix in bread flour and a few pinches of salt to make a stiff dough. Then go outside and roll out little nubbins, exactly as you would boogers, onto a dish towel. It takes a long time, but look how beautiful they are! Leave in the sun for at least a day or two. Boil up and just sprinkle on olive oil and salt. They have a light pleasant sourness, and are chewy. The traditional way is to make flat disks, dried in the sun, break them up and dry again, and then boil them, but these are so much prettier. Like little pine nuts I think.