Börek (also burek, boereg, an other variants on the name) is a type of pie popular throughout the former Ottoman Empire. They are made of a thin flaky dough known as phyllo or yufka, and are filled with salty cheese (often feta), minced meat, potatoes or other vegetables. Börek may be prepared in a large pan and cut into portions after baking, or as individual pastries. The top of the börek is often sprinkled with sesame seeds.