Baking Powder (Best Option)
3 teaspoons per 1 teaspoon baking sodaBaking powder contains both an acid and a base, allowing it to react twiceβonce when wet and once when heated. This makes it a reliable substitute for baking soda in recipes where an acid is not sufficiently present. In chocolate chip cookies, it helps create lift and a tender crumb.
To use baking powder successfully, increase the quantity to about three times the amount of baking soda because it is less potent. Watch for a slight change in texture; cookies may be puffier and less chewy. Adjust baking time slightly if needed.
Compared to baking soda, baking powder results in a softer, more cake-like cookie rather than the classic chewy texture. Flavor remains neutral, making it the best compromise substitute.