The word "leavening" refers to the process of making dough or batter rise by adding a substance, like yeast or baking powder, which creates gas bubbles that make the mixture fluffy and light. Full definition
Because of the lack of leavening agents in Passover desserts, eggs are the go - to ingredient for my recipes. (hungryrabbit.com)
That begins with baking at home, which the network and many members promote and teach, and if baking at home means beginning with brown bread leavened with bread soda, well and good. (realbreadireland.org)
For cakes leavened by egg whites, beat only to a soft - peak consistency to keep them from deflating as they bake. (betterbatter.org)