Jumbo Künefe İzmit is a nice dessert store that sells mostly Turkish delicacies like Künefe. They also have a few branches in Istanbul as well as other cities in Turley. Their desserts are what you expect from most of dessert store and it can be though of acceptable taste.
Address: Sehit Ergun Koncu Sok. No:7 Yahyakaptan Mah., Izmit 41100 Turkey