Borekas are savory or sweet pastries made with puff pastry and a variety of fillings. The shape of a boreka usually tells you what the filling is — triangles for cheese, squares for potatoes, twists for spinach. (I generally make whatever holds its shape!) They are found everywhere on the streets in Israel, often treated as if they were sandwiches. The vendor opens the boreka to add chopped eggs, tomatoes and tahini sauce to the filling. He then presents it to you with pickles.