Tohax

Tandyr nan is a type of Central Asian bread cooked in a vertical clay oven, the tandyr or tandoor. It is circular and leavened with yeast, and typically has a crisp golden surface. They are often decorated by stamping patterns on the dough, and can be topped with ingredients like sesame seeds, nigella seeds, or thinly sliced onion. Large tandyr ovens used to bake nan as well as cook meat are typically located outdoors. Unlike Indian tandoor ovens, in Central Asia the tandyr can be used in a vertical or horizontal position, although the bread is always baked in the fashion of a vertical oven, with the bread stuck onto the inner walls of the oven. The leavening can derive from sourdough starter, as is traditional, or from brewers yeast. Several filled variants of the bread exist, such as Uyghur gosh nan and Turkmen atli nan. Bakers of nan are called nonvoys. Nan is often decorated with a central design in the shape of a circle consisting of patterned dots. This design is created with a stamp known in Uzbekistan as a chekich or in Turkmenistan or by Uyghurs in Xinjiang as durtlik. In addition to giving each bakery's nan a distinct design, the holes created by the chekich allow steam to rise from the flattened interior part of the nan. A radial pattern of slashes or dots can also be added with a bosma, a tool often made with reused bicycle spokes. Other bakers may use a chekich several times on the surface of their nan. Nan for festive occasions may have more elaborate designs or color added. Nan for engagements is often colored pink and yellow.

Source: Wikipedia