What Can I Use to Substitute Baking Powder?

For a quick baking powder substitute, combine 1/4 teaspoon (about 1 g) baking soda with 1/2 teaspoon (about 1.5 g) cream of tartar for every 1 teaspoon of baking powder your recipe calls for. The mixture provides a base and a dry acid to make baked goods rise; mix it just before using, because it starts reacting as soon as it gets wet.

Ingredients

3/4 teaspoon (3.5 g) baking soda
1 1/2 teaspoons (4.5 g) cream of tartar

This small batch replaces 1 tablespoon (3 teaspoons) baking powder. The formula is one part baking soda to two parts cream of tartar by volume, so you can scale it to match the amount your recipe needs: use 1/4 teaspoon baking soda and 1/2 teaspoon cream of tartar for each teaspoon of baking powder. The gram weights are approximate because brands and how a spoon is filled can affect the weight.

Use plain baking soda, not baking powder, for the alkaline ingredient. Cream of tartar is a dry, powdered acid sold in the baking aisle. You do not need to add cornstarch for a substitute that will be used immediately; commercial baking powder often contains starch to keep its ingredients dry during storage, but this quick mix is not intended to sit in a cupboard.

Instructions

Measure the amounts your recipe needs. For each teaspoon of baking powder listed, measure 1/4 teaspoon baking soda and 1/2 teaspoon cream of tartar. For example, a recipe calling for 2 teaspoons baking powder needs 1/2 teaspoon baking soda and 1 teaspoon cream of tartar. The batch in the ingredient list makes enough to replace 3 teaspoons.
Combine the dry ingredients. Whisk the baking soda and cream of tartar together in a small bowl, or sift them into the other dry ingredients. Break up any lumps so the soda is evenly distributed; concentrated pockets can leave an unpleasant alkaline taste and cause uneven rising.
Continue with the recipe promptly. Add the wet ingredients when directed, mix only as much as the recipe specifies, and get the batter or dough into the oven without an unnecessary pause. This substitute reacts when liquid reaches it, unlike much commercial double-acting baking powder, which also produces gas as it heats.
Bake according to the original recipe. Keep its stated pan, oven temperature, and baking time unless you have another reason to adjust them. Check for the doneness cues in that recipe, such as a clean toothpick for a cake or a set center for muffins. This substitution changes the leavener, not the rest of the recipe.

The reaction is what gives the substitute its lift: baking soda releases carbon dioxide when it meets the acid in cream of tartar and moisture. The gas expands in the batter, so a prompt trip to the oven helps the baked good hold on to the bubbles. It will not rescue a batter that has been left standing for a long time or mixed far more than its recipe calls for.

Tips

Scale carefully. The useful ratio is 1/4 teaspoon baking soda plus 1/2 teaspoon cream of tartar per 1 teaspoon baking powder. Do not swap equal spoonfuls of soda for baking powder: baking soda is more concentrated and needs an acid to react.
Use fresh ingredients. If baking soda has been open for a long time or cream of tartar has absorbed moisture and formed hard clumps, the result may be less dependable. Keep both tightly sealed in a cool, dry cupboard and measure with dry spoons.
Do not mix a large jar for later. The two powders can be measured together right before baking, but moisture in the air or a damp utensil may start the reaction. If you need a shelf-stable leavener, buy baking powder rather than storing a homemade blend.
Account for other acids. Recipes may already contain buttermilk, yogurt, citrus juice, vinegar, or natural cocoa. The cream-of-tartar formula is a useful direct replacement, but too much soda can leave a soapy flavor and affect browning, so do not add extra soda casually.

Serving Suggestions

This substitute is an ingredient, not something served on its own. Use it in the same kinds of quick baked goods that call for baking powder: pancakes, waffles, biscuits, scones, muffins, quick breads, and many cakes. It is especially convenient when a recipe uses baking powder as its only leavener and you have both baking soda and cream of tartar available.

Serve the finished food as its recipe suggests. Pair pancakes or waffles with fruit, syrup, or yogurt; offer biscuits alongside soup or a savory meal; and let muffins or quick bread cool before slicing so their crumb can set. If a recipe relies on a delicate, high rise or includes several leaveners, the original baking powder will generally give a more predictable result than a last-minute substitution.

Variations

Baking soda and lemon juice or vinegar: If you do not have cream of tartar, a common quick alternative for each 1 teaspoon baking powder is 1/4 teaspoon baking soda plus 1/2 teaspoon lemon juice or white vinegar. Stir the liquid acid into the wet ingredients, not into the dry bowl, and bake promptly. The added liquid is small but can still matter in a carefully balanced recipe; lemon may also leave a faint citrus note.

Baking soda with buttermilk or plain yogurt: This works best when the recipe can use a tangy dairy ingredient and has enough liquid to adjust. As a broad baking conversion, 1/2 teaspoon baking soda can work with 1 cup (240 ml) buttermilk in place of about 2 teaspoons baking powder. Reduce another liquid by roughly the same amount, and avoid adding the soda without an acidic ingredient. Yogurt can be thinned with milk to a pourable consistency; its thickness and acidity vary, so this route is less exact than cream of tartar.

Self-rising flour: This can simplify a recipe that calls for plain flour, baking powder, and salt. Self-rising flour already contains leavener and salt, but the amounts vary by brand, so it is not a universal one-for-one replacement for a measured amount of baking powder. Use it only when you can replace the recipe’s flour as well, and check the package information before omitting leavener or salt. It is usually a poor choice if the recipe calls for only a small amount of flour or requires precise proportions.

Club soda: Carbonated water can contribute bubbles to thin batters such as pancakes, but it does not provide the same dependable acid-and-base leavening as baking powder. Replace some of the recipe’s liquid with plain club soda and mix gently just before cooking. Expect a different texture and less lift; it is a fallback rather than a direct substitute for cakes, biscuits, or doughs that need strong rise.

Storage and Reheating

Make only the amount of baking soda and cream of tartar mixture you need, and use it immediately. Do not refrigerate it or save a leftover mixed portion for another day: the mixture can lose its effectiveness if it picks up moisture. Keep the two original ingredients in their own airtight containers in a dry cupboard, and follow any best-by guidance on their packaging.

Store the finished baked good according to its recipe. Plain muffins, quick breads, and similar items are often kept covered at room temperature for a short period, while items with cream, custard, meat, or other perishable fillings should be refrigerated within 2 hours. Most cooked leftovers keep 3–4 days in the refrigerator; freeze extras if you will not eat them in that time. Reheat leftovers that need reheating to 165°F (74°C), and use the recipe’s texture cues to avoid drying out baked goods.

Frequently Asked Questions

What is the best substitute for baking powder?
The most direct option is 1/4 teaspoon baking soda plus 1/2 teaspoon cream of tartar for each teaspoon of baking powder. It gives you both the alkaline ingredient and a dry acid, without requiring a change to the recipe’s liquid. Combine the powders with the dry ingredients and bake promptly after adding liquid.

Can I use baking soda by itself?
Usually not as a straight replacement. Baking soda needs an acidic ingredient to produce the gas that lifts a batter, and using too much can give food a bitter or soapy taste. If the recipe already contains enough acidity, a small amount may work, but the right quantity depends on the full formula. The cream-of-tartar ratio is a more reliable starting point.

Can I substitute baking powder with just cream of tartar?
No. Cream of tartar supplies acid but not the alkaline baking soda needed to make the leavening reaction. Use it with baking soda in the ratio above, or choose another option that supplies both an acid and a base. Adding cream of tartar alone may make a recipe more acidic without giving it the intended rise.

Will this work in pancakes, biscuits, or cake?
It can work in many recipes for pancakes, biscuits, muffins, and cakes that call for baking powder. Stir the substitute into the dry ingredients and cook or bake soon after the wet ingredients are added. Results can vary in recipes that depend on double-acting baking powder, have a very delicate crumb, or use several leavening agents.

Can I prepare the substitute in advance?
It is better to measure it right before baking. A dry, tightly sealed homemade blend might remain dry for a while, but household humidity and small amounts of moisture can start the reaction and weaken it before it reaches the batter. Store baking soda and cream of tartar separately, then combine only the amount the recipe needs.

What if I have baking soda but no cream of tartar?
Use baking soda with an acidic liquid such as lemon juice or vinegar, or adapt the recipe to use buttermilk or yogurt if its flavor and consistency suit the bake. These choices can change the liquid balance and taste, so they are less exact than the dry cream-of-tartar method. If the recipe is particularly sensitive, it is safer to get baking powder or choose a recipe designed for the ingredients on hand.

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