Unleavened bread

Unleavened bread covers a wide variety of breads prepared without a raising agent such as yeast or baking soda, and as a result these breads are typically flat rather than risen. Breads of this kind have been made since prehistoric times, and later examples include tortillas from Central America, roti from South Asia, arepas, bannock and lavash. The category carries religious weight in both Judaism and Christianity: Jews eat matzo during Passover as commanded in the Torah, while unleavened bread is used in the Christian Eucharist, though Eastern Orthodox practice specifically requires leavened bread for that rite rather than unleavened. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/