Get the dark purple pepper flakes from Urfa, called "ISOT". Very special to the area.

From a spice merchant site :

"This rich pepper flake from Turkey has an earthy, smoky edge that hints at chocolate and tobacco alongside a mild heat giving it a well rounded, complex flavor. Similar to Aleppo Pepper in terms of heat level (and geography...the town of Urfa is only one mountain range away), it also has a wide range of uses and will enhance most any dish. Urfa Biber can be used extensively in a variety of savory dishes. Try it in sweet ones, too."

Buy the Turkish delight from the airport (possibly Divan brand if Haci Bekir is not available)

Do not go to a kebap restaurant in Urfa unless you are willing to eat only salads and fresh greens.

Try the "Gavurdag Salad" especially in Gaziantep but also in Urfa.

The ever present lentil soup may yet save you again: "Mercimek Corbasi"

"Kuru Fasulye, Etsiz", Great Northern White Beans, is another major staple, everywhere in Anatolia, usually eaten with Pilav

Other possibilities are,
- Kisir
- Ezme
- Zeytinyagli dolma

There are many cheap souvenir shops near the prophet Abraham's lake. A typical regional male head covering calld Posu (Poashoo) is like the Arabic kefiyye but is worn without a round wooden circle. Get the shopkeeper to show you how to tie it.