Substitute for baking-powder in biscuits
Quick answer
The most reliable substitute is cream of tartar combined with baking soda: use 1/2 tsp baking soda + 1 tsp cream of tartar to replace every 1 tsp of baking powder. If you have buttermilk on hand, swap the liquid in the recipe for buttermilk and use 1/4 tsp baking soda per 1/2 cup buttermilk to replace each 1 tsp of baking powder.
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| Rank | Substitute | Ratio (replaces 1 cup baking-powder) | Notes |
|---|---|---|---|
| #1 | Cream of tartar and baking soda | 1/2 tsp baking soda + 1 tsp cream of tartar = 1 tsp baking powder | Cream of tartar is an acid that reacts immediately with baking soda to produce CO2 lift. This is a direct 1-for-1 replacement with no liquid adjustment needed. Rise is slightly faster than double-acting baking powder (which has a second oven-triggered rise), so get biscuits in the oven quickly after mixing. Texture and crumb are close to the original; most tasters cannot tell the difference. |
| #2 | Buttermilk and baking soda | 1/4 tsp baking soda per 1/2 cup buttermilk replaces 1 tsp baking powder; reduce other liquid by 1/2 cup | Buttermilk's lactic acid activates baking soda strongly and also contributes a mild tang that is well-suited to Southern-style biscuits. You must reduce the recipe's other liquid (milk or water) by the amount of buttermilk added, or the dough will be too wet to handle. Does not work well in recipes that have no other liquid to offset. |
| #3 | Plain yogurt and baking soda | 1/4 tsp baking soda + 1/4 cup plain yogurt replaces 1 tsp baking powder; thin yogurt with 2–3 tbsp milk to approximate liquid volume | Full-fat plain yogurt provides enough acidity to leaven effectively. The higher fat and protein content can make the interior crumb slightly denser and more tender than a standard biscuit — noticeable but not a failure. Low-fat or nonfat yogurt works in a pinch but produces a marginally tighter crumb. Reduce other liquid accordingly. |
| #4 | Self-rising flour (as base flour swap) | Replace 1 cup all-purpose flour with 1 cup self-rising flour; omit baking powder and reduce salt by 1/4 tsp per cup | Self-rising flour is all-purpose flour pre-mixed with baking powder (typically 1.5 tsp per cup) and salt. It is the foundation of many classic Southern biscuit recipes and produces a highly reliable result. Only useful if you can replace the full flour amount — partial swaps complicate the ratio. Does not help if you are out of both baking powder and self-rising flour. |
Why biscuits is different
Biscuits rely on baking powder for a fast, high rise in a short bake time (10–14 minutes). Unlike a cake, there is no time for a slow leavening reaction — the lift must happen quickly in a very hot oven (425–450°F). Biscuits also have very little liquid relative to other baked goods, so any acid-based substitute that adds liquid throws off the dough's hydration and handling properties if not adjusted. The fat-to-flour ratio critical for flakiness is unforgiving of structural changes caused by wrong leavening amounts.
Common mistakes
The most common error is using too much baking soda without sufficient acid to balance it, which leaves a soapy or metallic aftertaste and can cause the biscuits to brown unevenly. A second frequent mistake is failing to reduce other liquids when adding buttermilk or yogurt as the acid source, producing a dough too slack to shape properly. Some cooks also mix the dough too long after adding acid-based substitutes — because the reaction starts on contact, overworking after that point degrades the lift before the biscuits reach the oven.
Biscuits are one of the more unforgiving applications for leavening substitutes because the window between mixing and baking is short and the dough is stiff — errors in acid-base balance or hydration show up immediately in the final texture. The cream of tartar and baking soda method is the safest choice precisely because it mimics the chemistry of baking powder most closely and requires no other adjustments to the recipe.
If you regularly bake biscuits and want a structural backup option, self-rising flour stored alongside all-purpose flour effectively solves the problem at the ingredient level. For a single emergency bake, cream of tartar is the faster fix — most grocery stores stock it in the spice aisle, and a small jar has a long shelf life.
Frequently asked questions
- Can I make biscuits with just baking soda and no acid?
- No. Baking soda alone has no acid to react with and will not produce meaningful lift. Used alone it also contributes a distinct soapy flavor. You need an acid source — cream of tartar, buttermilk, or yogurt — to activate it.
- How do I substitute baking powder in a cream biscuit recipe that has no buttermilk?
- Use the cream of tartar and baking soda method (1/2 tsp baking soda + 1 tsp cream of tartar per 1 tsp baking powder). It requires no liquid adjustment and works directly in cream biscuit doughs.
- Will biscuits made with these substitutes rise as high as with baking powder?
- Close, but not always identical. Cream of tartar plus baking soda comes the nearest. Buttermilk and yogurt substitutes produce a slightly denser biscuit because the single-acting reaction (acid + base in the bowl) doesn't have the second heat-triggered rise that double-acting baking powder provides.
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