Baking Soda
10.0Use 1/4 tsp baking soda plus 1/2 tsp cream of tartar per 1 tsp baking powder; mix fresh each time
Savory uses — biscuits, cheddar scones, cornbread, onion pakora — demand baking powder work alongside salt at 1-1.5% and umami sources like parmesan or miso without producing a soapy or metallic aftertaste above pH 8.3. Too much residual alkalinity flattens glutamate perception. This page ranks substitutes on salt-acid-umami compatibility, whether they leave a clean finish on the palate, and how they behave with cheese proteins that want a slightly acidic crumb to melt evenly.
Use 1/4 tsp baking soda plus 1/2 tsp cream of tartar per 1 tsp baking powder; mix fresh each time
1/4 tsp baking soda plus 1/2 tsp cream of tartar per 1 tsp baking powder, mixed fresh into dry flour with herbs and 1-1.5% salt. Single-pulse rise works for thin savory flatbreads under 1/2 inch; for taller biscuits it falls short by about 20% of target height.
Mix 1/2 cup buttermilk + 1/4 tsp baking soda to replace 1 tsp baking powder; reduce other liquid
1/2 cup buttermilk plus 1/4 tsp baking soda per 1 tsp baking powder, minus 1/2 cup other liquid. Ideal for cheddar-chive biscuits and drop scones — lactic tang balances salt (1-1.5%) and shortens gluten, giving flaky rather than bready texture that pairs cleanly with cured meats.
5/8 tsp cream of tartar + 1/4 tsp baking soda per 1 tsp baking powder
5/8 tsp cream of tartar with 1/4 tsp baking soda per 1 tsp baking powder. The mild tartaric-acid finish is compatible with savory applications (salt at 1-1.5%, umami from aged cheese), leaving no soapy residue. Best for biscuits and scones under 2 inches where single-pulse rise is enough.