Baking Powder (Best Option)
1 teaspoon per 1 cup of flourBaking powder is a chemical leavening agent composed of an acid and a base that react when moistened and heated, producing carbon dioxide gas that causes the batter to rise. This reaction happens quickly, making it ideal for crepes which have minimal resting time compared to yeast-leavened batters.
To ensure success, mix baking powder thoroughly into the dry ingredients and cook crepes immediately after batter preparation to maximize leavening effect. Avoid overmixing to prevent deflating the batter.
Compared to yeast, baking powder does not contribute to flavor complexity but produces a similarly light and tender texture suitable for crepes, maintaining their delicate thinness and slight fluffiness.