Unleavened bread

Unleavened bread

Jewish matza eaten on Passover
Type	Bread (usually flat bread)
Variations	Matzo, roti, tortilla, and many others

Unleavened bread is any of a wide variety of breads which are prepared without using rising agents such as yeast or sodium bicarbonate. The preparation of bread-like non-leavened cooked grain foods appeared in prehistoric times.

Unleavened breads are generally flat breads. Unleavened breads, such as the tortilla and roti, are staple foods in Central America and South Asia, respectively. Unleavened sacramental bread plays a major part in Christian liturgy and Eucharistic theology.