Baking Powder (Best Option)
1 1/2 teaspoons per 1 cup of flourBaking powder is a chemical leavening agent that releases carbon dioxide gas when moistened and heated, causing the batter to rise quickly. This immediate leavening suits waffles well, which are cooked rapidly on a hot iron.
For best results, mix baking powder evenly into the dry ingredients and cook waffles immediately after batter preparation to maximize gas retention. Avoid overmixing to prevent deflating the batter.
Compared to yeast, baking powder waffles lack the subtle fermented aroma and slightly chewy texture but gain a tender crumb and quicker preparation time.