Leavening is the process of adding a leavening agent such as baking powder, baking soda, or yeast to dough; the gas produced gives it volume and a porous texture. Chemical leaveners act quickly, while yeast works through biological fermentation. Proper leavening gives cakes and breads a light, soft texture.
Where It’s Used
“Add the baking powder to the cake batter by sifting it together with the flour.”