Baking Powder (Best Option)
3 teaspoons 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 leaven the granola and create a lighter texture. Since granola recipes often rely on baking soda to react with acidic ingredients like brown sugar or honey, baking powder can replace this function by providing its own acid-base balance.
To ensure success, increase the amount of baking powder to about three times the amount of baking soda because it is less potent. Monitor the granola's baking time to avoid over-browning, as baking powder can cause a slightly faster rise.
Compared to baking soda, baking powder may result in a granola that is less crisp and slightly more cake-like, but it maintains the overall structure and flavor balance well.