Baking Powder (Best Option)
3 teaspoons per 1 teaspoon of baking sodaBaking powder contains baking soda along with an acid and a drying agent, allowing it to act as a complete leavening agent. In roasted vegetables, it helps to promote browning and slight crispness by raising pH and releasing carbon dioxide during cooking.
To use baking powder effectively, increase the amount to about three times that of baking soda to compensate for the acid content and lower alkalinity. Monitor for any slight changes in flavor, though these are usually minimal.
Compared to baking soda, baking powder may produce a milder alkaline environment, resulting in slightly less intense browning but generally similar texture and crispness.