Yes, you can use baking powder instead of baking soda in cookies. The standard swap is 3 teaspoons of baking powder for every 1 teaspoon of baking soda. Your cookies will turn out puffier, softer, and more cake-like, and they will brown less and taste milder. If a recipe calls for baking soda and you only have baking powder, the swap works in a pinch, but the texture will not be identical. Below I walk through the science, the exact conversion table, the texture trade-offs, and what to do if you have already mixed the dough with the wrong leavener.
I have tested this swap in my own kitchen more times than I would like to admit, including the time I grabbed the wrong canister for a batch of snickerdoodles and watched them puff up like muffins. Let me save you that moment.
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Quick Answer: Can You Substitute Baking Powder for Baking Soda?
You can substitute baking powder for baking soda in cookies, and the swap is safe. Use 3 teaspoons of baking powder for every 1 teaspoon of baking soda the recipe calls for, and skip any acidic ingredients (brown sugar, buttermilk, molasses, honey) or reduce them so the flavor stays balanced.
What changes:
- Texture: Baking powder makes cookies puffier, taller, and softer. Baking soda makes cookies thinner, chewier, and crispier on the edges.
- Flavor: Baking soda brings a deeper, almost butterscotch note and faster browning. Baking powder leaves a milder, more neutral flavor.
- Spread: Baking soda spreads the dough out. Baking powder keeps it in a tighter mound.
The one-line rule: 1 teaspoon baking soda = 3 teaspoons baking powder.
What Is Baking Soda and How Does It Work in Cookies?
Baking soda is pure sodium bicarbonate, also called bicarbonate of soda. It is a single-ingredient base that needs an acid to activate. On its own in the oven, it does almost nothing.
The acid arrives from the other ingredients in your dough: brown sugar, buttermilk, molasses, honey, cream of tartar, yogurt, or even natural cocoa powder. The moment baking soda meets one of those acids, it releases carbon dioxide gas, and that gas is what makes cookies rise and spread.
Baking soda does two more jobs that baking powder cannot do as well. First, it raises the pH of the dough, which speeds up the Maillard reaction and gives cookies faster, deeper browning. Second, it reacts with acids on contact, so the leavening happens early, while the dough is still on the cookie sheet, which is why baking soda cookies spread out flat and end up with crispy edges and chewy centers.
What Is Baking Powder and How Does It Work in Cookies?
Baking powder is baking soda with a dry acid already mixed in, usually cream of tartar, plus a little cornstarch to keep it from reacting in the can. Most baking powder sold today is double-acting, meaning it reacts twice: once when it gets wet and once when it hits oven heat.
Because the acid is already built in, baking powder does not need brown sugar or buttermilk to do its job. It just needs moisture and heat. The double-acting setup is what gives baking powder cookies that tall, puffy, almost cake-like lift, since the second burst of gas happens after the cookies are already setting up in the oven.
The trade-off is that baking powder cannot raise the dough pH the way pure baking soda can. That is why baking powder cookies tend to look pale and taste neutral compared with baking soda cookies, which brown quickly and taste more complex.
Substitution Ratio: How Much Baking Powder Equals Baking Soda?
The standard ratio is 3 parts baking powder for every 1 part baking soda, measured by volume, not weight. Baking powder is roughly one-third as strong as baking soda, so you need three times more to get the same lift.
Baking soda to baking powder conversion table:
| If the recipe calls for | Use this much baking powder |
|---|---|
| 1/4 teaspoon baking soda | 3/4 teaspoon baking powder |
| 1/2 teaspoon baking soda | 1 1/2 teaspoons baking powder |
| 3/4 teaspoon baking soda | 2 1/4 teaspoons baking powder |
| 1 teaspoon baking soda | 3 teaspoons baking powder |
| 1 1/2 teaspoons baking soda | 1 tablespoon baking powder |
One more thing: since baking powder is buffered with cornstarch and already contains an acid, it adds its own flavor footprint. If the recipe relies heavily on brown sugar or molasses for that classic toffee note, you may want to drop the baking powder amount to about 2 teaspoons per 1 teaspoon of baking soda, then taste-test the dough. Going too heavy on baking powder can leave a faintly metallic or bitter finish.
Texture Differences: How Each Leavener Changes Your Cookies
Once you understand the chemistry, the texture gap is easy to predict. Here is what I see when I bake the same dough two ways.
| Cookie trait | Baking soda | Baking powder |
|---|---|---|
| Shape | Thin, wide, spread out | Thick, tall, mounded |
| Edges | Crispy, lacy, browned | Soft, pale, rounded |
| Center | Chewy, slightly dense | Soft, airy, cake-like |
| Browning | Fast, deep golden | Slow, light golden |
| Flavor | Butterscotch, toffee-like | Mild, neutral, slightly chalky |
| Best for | Chocolate chip, snickerdoodles, gingerbread | Sugar cookies, shortbread, funfetti |
The single biggest difference is spread. Baking soda spreads; baking powder does not. If your swap turns out a batch of little biscuits instead of cookies, that is the cause.
Which Cookies Need Baking Soda vs. Baking Powder (Cookie Type Cheat Sheet)
Different cookie styles reward different leaveners. Here is the cheat sheet I wish someone had handed me the first year I baked seriously.
| Cookie type | Best leavener | Why |
|---|---|---|
| Snickerdoodles | Baking soda | The tangy flavor comes from cream of tartar reacting with soda |
| Chocolate chip cookies | Baking soda | Spreads, browns, and gets chewy centers with crisp edges |
| Gingerbread | Baking soda | Molasses is acidic, baking soda activates for lift and browning |
| Oatmeal raisin | Baking soda | Brown sugar acidity gives chew and color |
| Peanut butter | Baking soda | Spreads wide, crisp edges, classic crinkle top |
| Sugar cookies (cut-out) | Baking powder | Holds shape, no spread, clean edges for cutters |
| Shortbread | Baking powder (small amount) | Tender, sandy texture without much rise |
| Funfetti cookies | Baking powder | Tall, soft, cake-like with sprinkles |
| Crinkle cookies | Baking powder | Puffy enough to crack on top while baking |
| Brown butter cookies | Baking soda | Matches the toffee flavor with deeper browning |
If you want chewy, go with baking soda. If you want soft, thick, and cakey, go with baking powder. That single line will steer you right 90 percent of the time.
Why Some Recipes Use Both Baking Soda and Baking Powder
Some recipes, including many chocolate chip cookie recipes, call for both leaveners on purpose. The baking soda spreads the dough and browns the edges. The baking powder lifts the center and keeps it tall. Together they balance spread and lift, which is exactly what you want for a cookie with crisp edges and a thick, chewy middle.
If you see both listed in a recipe, do not assume it is a typo. It is doing two jobs at once.
What Happens If You Use the Wrong Leavener (or the Wrong Amount)?
Two things go wrong when the leavener is off: taste and texture. Both are worth knowing before you start.
Too much baking soda: the dough pH climbs too high, and the soda reacts with whatever acid it can find. The result is a soapy or chemical aftertaste, often described as bitter. The cookies may also brown too fast on the outside while staying raw in the middle.
Too much baking powder: the cookies rise fast and tall in the oven, then collapse as they cool. They turn out pale, dry, and a bit chalky. Some bakers describe the flavor as metallic.
Wrong leavener entirely: if a recipe was designed around baking soda and you use only baking powder, the cookies will puff up like little biscuits and stay pale. If the recipe was designed around baking powder and you use only baking soda, the cookies will spread into thin, dark, brittle discs with a sharp aftertaste.
Neither batch is ruined. Both are edible. The texture and flavor just will not match what the recipe promised.
I Accidentally Used Baking Powder Instead of Baking Soda — Now What?
This is the panicked Reddit thread I see every week. You mixed the dough, scooped it onto the sheet, and now you realize you used the wrong canister. Here is the recovery checklist.
- If the dough is still in the bowl: scoop the dough into balls, flatten them slightly, and bake as-is. Expect puffier, softer, paler cookies. They will taste fine.
- If the dough is portioned but unbaked: press each ball flat with the back of a spoon before baking. This forces the spread the baking soda would have given you.
- If the cookies are already baked and you do not like the result: flatten the warm cookies with a spatula, let them cool, and use them as an ice cream sandwich base or a crumble topping. Waste nothing.
- If you have extra dough: bake one test cookie and decide. One cookie costs you 10 minutes and gives you real data.
I have rescued accidental powder batches by chilling the dough for 30 minutes, then pressing each portion flat before baking. The cold slows the powder down and the flattening forces the spread. The cookies came out thinner and chewier than they would have with baking soda, but they were still good.
How to Make Baking Powder from Baking Soda (DIY Substitute)
You can make your own baking powder with two pantry staples. The ratio is 1 part baking soda to 2 parts cream of tartar. For most recipes, that means 1 teaspoon baking soda plus 2 teaspoons cream of tartar equals 1 tablespoon of baking powder. Add 1 teaspoon of cornstarch if you want the same shelf-stable buffer that commercial baking powder uses.
Mix the dry ingredients together and use immediately, or store the blend in an airtight jar for up to a month. Homemade baking powder is single-acting, so it reacts once on contact with liquid instead of twice like the double-acting stuff in the supermarket. Use it right away after mixing the dough.
How to Tell If Your Baking Soda or Baking Powder Is Still Active
Old leaveners lose potency, and weak leaveners give you flat cookies. Two quick tests tell you which canister to toss.
Baking soda test: drop 1 teaspoon of baking soda into a small bowl of vinegar or lemon juice. If it fizzes hard, it is active. If the fizz is weak, replace it.
Baking powder test: drop 1 teaspoon of baking powder into a small bowl of hot water. If it fizzes immediately and vigorously, it is active. Slow fizz means it is on its way out.
Both tests take 30 seconds and save you from a wasted batch.
Frequently Asked Questions
Can I use baking powder instead of baking soda in cookies?
Yes. Use 3 teaspoons of baking powder for every 1 teaspoon of baking soda in the recipe. The cookies will turn out puffier, softer, paler, and milder in flavor than they would with baking soda. The swap is safe and the cookies are still edible, but the texture will not match what the recipe was designed to produce.
Does baking powder or baking soda make cookies fluffier?
Baking powder makes cookies fluffier. It is double-acting, which means it releases carbon dioxide twice: once when it meets liquid and once when it hits oven heat. That second burst is what lifts the cookies into tall, soft, cake-like mounds. Baking soda, on the other hand, reacts once and early, which makes cookies spread out flat.
Is baking powder or baking soda better for chewy cookies?
Baking soda is better for chewy cookies. It reacts with the acid in brown sugar, molasses, or buttermilk on contact, which forces the dough to spread before it sets. The result is thin edges that crisp up and a center that stays dense and chewy. Baking powder keeps the dough tall and soft, which gives a cake-like texture instead of a chewy one.
What happens if I bake cookies without baking soda or baking powder?
Without any leavener, the cookies will not rise or spread. They will bake into dense, flat, often greasy discs that taste heavy and overly buttery. Shortbread is the main exception: it is designed to be dense and skip leavening on purpose. For everything else, your cookies need at least a small amount of soda or powder.
How much baking powder do I use instead of 1 teaspoon of baking soda?
Use 3 teaspoons of baking powder for every 1 teaspoon of baking soda. For smaller amounts, that means 3/4 teaspoon baking powder replaces 1/4 teaspoon baking soda, 1 1/2 teaspoons replaces 1/2 teaspoon, and 2 1/4 teaspoons replaces 3/4 teaspoon. Measure by volume, not weight.
Why do some cookie recipes call for both baking soda and baking powder?
Recipes that call for both are balancing two jobs. Baking soda spreads the dough and browns the edges. Baking powder lifts the center and keeps it tall. Together they make cookies with crisp, lacy edges and a thick, chewy middle, which is exactly what you want from a classic chocolate chip cookie.
The Bottom Line
You can absolutely use baking powder instead of baking soda in cookies. The 3:1 ratio is the rule, and the trade-off is real: softer, puffier, paler cookies with a milder flavor. Reach for baking soda when you want chewy, brown, crispy-edged cookies like chocolate chip or snickerdoodles. Reach for baking powder when you want tall, soft, cake-like cookies like cut-out sugar cookies. And if you have already mixed the dough with the wrong canister, press the portions flat, chill the dough, and bake them anyway. Most accidental swaps are recoverable.