⭐ Baking Soda + Cream of Tartar (Best Gluten-Free Option)
1/4 teaspoon baking soda + 1/2 teaspoon cream of tartar per 1 teaspoon baking powderBaking powder is essentially a mix of baking soda (a base) and an acid, often cream of tartar, which react to produce carbon dioxide gas that leavens dough. By combining baking soda with cream of tartar, you recreate this acid-base reaction, enabling the bagel dough to rise properly during baking.
To ensure success, mix the baking soda and cream of tartar thoroughly before adding to the dough to achieve even leavening. Avoid adding extra acidic ingredients as this can cause excessive bubbling and off textures.
Compared to commercial baking powder, this substitute offers nearly identical leavening power and results in bagels with the expected chewiness and slight puff without a metallic or bitter aftertaste.