Some flatbreads, such as naan, use leavening agents; others, such as matzo, do not.
en.wikipedia.org Almost all quick breads have the same basic ingredients: flour, leavening, eggs, fat (butter, margarine, shortening, or oil), and liquid such as milk.
en.wikipedia.org These are often accompanied by milled sugar, and/or warm milk flavoured with saffron and almonds.: mandige - huge flat leavened pastry.
en.wikipedia.org But his scepticism was leavened with humour and appreciation of paradox, in which he found the stuff of poetry.
en.wikipedia.org A boule can be leavened with commercial yeast, chemical leavening, or even wild yeast sourdough.
en.wikipedia.org