Ka'ak can refer to a bread commonly consumed throughout the Near East that is made in a large ring-shape and is covered with sesame seeds. Fermented chickpeas are used as a leavening agent. Widely sold by street vendors, it is usually eaten as a snack or for breakfast with za'atar. In East Jerusalem, it's sometimes served alongside oven-baked eggs and falafel. Palestinians from Hebron to Jenin consider Jerusalem ka'ak to be a unique specialty good, and those from the city or visiting there often buy several loaves to give to others outside the city as a gift.
In Lebanon, ka'ak bread rings are made of sweet dough rolled into ropes and formed into rings and topped with sesame seeds. Instead of za'atar, after baking, it is glazed with milk and sugar and then dried. Tunisian Jews also make a slightly sweet-and-salty version of the pastry, but don't use a yeast-based dough. In Egypt, usually at wedding parties, a variation made with almonds, known as kahk bi loz, is served.
The pastries or sweets known as ka'ak are semolina-based cookies such as ka'ak bi ma'moul (or ka'ak bi ajwa) which is stuffed with ground dates, ka'ak bi jowz which is stuffed with ground walnuts and ka'ak bi fustok which is stuffed with ground pistachios.
Arab Christians, primary among them Palestinian Christians (including those who live in the Palestinian diaspora) and Lebanese Christians, make these sweets to celebrate Easter. The pastries are often shaped as wreaths and symbolize the crown of thorns that Christians believe Jesus Christ was wearing on the day of his crucifixion.
For the Muslim feasts during Eid al-Fitr and Eid al-Adha, ka'ak bi ma'moul is a traditional dessert as well. In Gaza, when a neighbour sends a dish filled with food to your house as is often the case during the holidays, it is customary to return the dish filled with food of your own making, and most commonly with ka'ak bi ajwa. The ka'ak sweets are also made year round among the entire Palestinian population and flour is sometimes substituted for semolina.
Ka'ak al-asfar ("the yellow roll") is a cake of bread that is made by Muslims in the Levant to honour the souls of the departed. Traditionally, this bread, stamped with an elaborate geometric design, was distributed along with dried fruit to the poor, to children, and to relatives, by the family of the deceased on the Thursday and Monday following the death and on a day known as Khamis al-Amwat ("Thursday of the Dead"). A bread stamp that was used to imprint designs on these cakes was discovered in Palestine and dates back to the fourteenth or fifteenth century CE. It is round, with a round handle and geometric designs, and measures 19 centimeters in diameter.
Ka'ak sweets made by Iraqis are generally doughnut-shaped and covered in sesame seeds, such as ka'ak ab sumsum and ka'ak eem tzmukin, which has raisins among other ingredients. Ka'ak beharat oo tefach shares the shape and many of the same ingredients as ka'ak eem tzmukin, but substitutes apples for raisins and is coated in almonds instead of sesame seeds.