Baking Powder (Best Option)
3 teaspoons baking powder per 1 teaspoon baking sodaBaking powder contains both an acid and a base, allowing it to produce carbon dioxide gas when moistened and heated, which helps the French Toast batter rise and become fluffy. It compensates for the lack of acidic ingredients needed to activate baking soda.
To ensure success, use three times the amount of baking powder compared to baking soda, as baking powder is less potent. Avoid increasing the amount further to prevent off-flavors.
Compared to baking soda, baking powder produces a slightly different texture that is still tender and light but may be less crisp on the edges. The flavor remains balanced if used correctly.