Its mouthfeel still remains soft enough to be bitten off easily, and leavening is easily discernible even by eye.
en.wikipedia.org In addition to flour, doughnuts may also include such ingredients as water, leavening, eggs, milk, sugar, oil/shortening, natural flavors and/or artificial flavors.
en.wikipedia.org One variation involves leavening the dough and not flattening up the coil into a pancake.
en.wikipedia.org 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