Naan is a traditional flatbread made using the dough enriched with ghee (clarified butter) & curd (yogurt) and cooked at a high temperature inside a clay oven called tandoor. Lately, naan dough is prepared just like any other bread dough using leavening agents such as yeast, baking soda, or baking powder and baked like pizza over a hot stone kept inside the oven. Earlier the dough was simply left covered for several hours allowing the process of fermentation to take place naturally.