What Does Baking Soda Do In Cookies? (2024)

And how is it different from baking powder?

What Does Baking Soda Do In Cookies? (2)

Even the most amateur bakers know one thing to be true: Baking is a science. Leaving out even one ingredient (or using the right ingredients in the wrong amounts) can result in a decidedly un-delicious disaster.

But how, you ask, can baking soda be so important when it looks so unassuming? Here's what you need to know about the tiny-but-mighty leavening agent — and what the heck it's doing in your cookie recipe:

Baking Soda vs. Baking Powder

Baking soda and baking powder are both leavening agents, or ingredients that make baked goods rise. They look almost identical and they have similar purposes, but they are not the same thing and they can't always be used interchangeably.

When baking soda, also called sodium bicarbonate, is combined with an acid (like buttermilk or lemon juice) and a liquid, it produces the carbon dioxide that helps the dough or batter rise.

Baking powder, meanwhile, already contains the sodium bicarbonate and acid it needs to become activated—all it needs is a liquid to produce carbon dioxide. Most recipes that call for baking powder are referring to the double-acting varieties, which react twice in the baking process: Once when it's combined with liquid, and again when the product is heated.

What Does Baking Soda Do In Cookies?

So, if baking soda and baking powder both create carbon dioxide, are they really that different? Yes and no. Baking soda is used in recipes that include one or more acids. When the recipe doesn't include an acid, baking powder is used. A recipe that calls for both ingredients probably contains an acid, but not enough to completely leaven the batter or dough.

Baking soda also serves another important purpose when it comes to cookies: It encourages spreading by raising the mixture's pH, which slows protein coagulation. This gives the dough more time to set before the eggs set, which results in a more evenly baked cookie.

Baking Soda Substitute

Don't try to substitute baking soda in cookie recipes that are quite acidic (like snickerdoodles or lemon crinkles). Substitution works better when you're dealing with something sugar-based and dense (like peanut butter or chocolate chip).

You technically can use baking powder as a baking soda alternative, but you'll need to consider a few factors first:

  • Baking soda is generally about three times stronger than baking powder, so adjust your recipe accordingly.
  • Baking soda and baking powder can produce cookies with different textures. Baking soda is typically used for chewy cookies, while baking powder is generally used for light and airy cookies.
  • Since baking powder is comprised of a number of ingredients (baking soda, cream of tartar, cornstarch, etc.), using it instead of pure baking soda will affect the taste of your cookies.

You can also try potassium bicarbonate, a dietary supplement that is often recommended as a baking soda alternative for people with high sodium levels, as a substitute. If you're not watching your sodium intake, you'll probably want to add a pinch of salt to get the closest flavor match.

Learn more: What's a Good Baking Soda Substitute?

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What Does Baking Soda Do In Cookies? (2024)

FAQs

What Does Baking Soda Do In Cookies? ›

A recipe that calls for both ingredients probably contains an acid, but not enough to completely leaven the batter or dough. Baking soda also serves another important purpose when it comes to cookies: It encourages spreading by raising the mixture's pH, which slows protein coagulation.

What happens if you don't put baking soda in cookies? ›

You technically can leave out baking soda in certain recipes (like chocolate chip cookies or pancakes) in a pinch, but you need to understand that your finished product will not be as light and fluffy as the recipe intended. Unless you have no other option, you really should use a leavening substitute.

Does baking soda make a difference in cookies? ›

adding baking soda to your cookie dough. will help your cookie spread more. and develop a golden brown color. this is because baking soda is a base. adding basic ingredients will weaken the gluten.

What does baking powder do for cookies? ›

Baking powder simply adds carbon dioxide to the equation, providing a more forceful pressure that encourages a dough to spread up and out.

Can I replace baking soda with baking powder in cookies? ›

You can definitely substitute baking powder for baking soda in recipes for baked goods. To do so use 3 times as much baking powder as the amount of baking soda your recipe calls for.

What is the secret to chewy cookies? ›

Cornstarch helps product soft and thick cookies. Using more brown sugar than white sugar results in a moister, softer cookie. An extra egg yolk increases chewiness. Rolling the cookie dough balls to be tall and lumpy instead of wide and smooth gives the cookies a bakery-style textured thickness.

What happens if you put too much baking soda in cookies? ›

Too much baking soda will result in a soapy taste with a coarse, open crumb.

What does cornstarch do to cookies? ›

“You can count on [it for] a softer and more tender crumb.” “A bonus benefit is it prevents the cookie from spreading too much while baking,” he adds, noting that a more compact, thick cookie typically yields a chewier outcome. But incorporating cornstarch isn't the only tip to make a cookie more palatable.

Why did my cookies come out flat? ›

If your cookies come out of the oven looking flat, you may not have adequately chilled the dough before baking. Chilling times may vary depending on the cookie you're making, but you should typically chill cookie dough in the refrigerator for at least two hours before you pop it in the oven.

What does brown sugar do in cookies? ›

Brown sugar, meanwhile, is dense and compacts easily, creating fewer air pockets during creaming—that means that there's less opportunity to entrap gas, creating cookies that rise less and spread more. With less moisture escaping via steam, they also stay moist and chewy.

What happens if you accidentally use baking powder instead of baking soda? ›

Baking powder: Baking powder can be used to replace baking soda, though not at a 1-to-1 ratio. Because the former is not as strong as the latter, it's important to use three times the amount of baking powder as baking soda. Be aware, a slightly bitter, off-putting taste might result from using that much baking powder.

Is baking soda or baking powder better for sugar cookies? ›

Ingredients For the Perfect Sugar Cookie Recipe:

Baking powder – This gives the sugar cookies lift, without adding too much spread or browning. Fine sea salt – So important to balance the sweetness! Unsalted butter – It's important that your butter is at a cool room temperature, otherwise your cookies may spread.

What ingredient makes cookies rise? ›

Baking Powder. The type of leavening you use in your cookies doesn't just help them rise while baking, it affects their texture and structure too. Baking soda in cookies yields a denser cookie with craggy tops, while baking powder causes cookies to rise higher during baking for a cakier texture.

Are my cookies ruined if I forgot baking soda? ›

It is possible to make cookies without baking soda and banana bread without baking powder. It's important to note that your batter or dough will not rise when baked in the oven, and the resulting treats will be dense and not airy.

Why do you have to mix baking soda with water for cookies? ›

The recipe for The Best Chocolate Chip Cookies claims that the addition of a small amount of water, “creates steam as [the cookie] bakes, working with the baking soda to puff the cookies up.” Others claim mixing warm water with baking soda helps remove clumps and disperses it with the other ingredients in the recipe.

What does dissolving baking soda do to cookies? ›

As the butter melts, the cookie's structure loosens, so that the water in the dough is able to combine with the baking soda, dissolving it. The baking soda then reacts to the acidic components present in brown sugar, creating gases that cause the cookie to rise.

How do you activate baking soda in cookies? ›

Cookies and Baking Soda

Unlike baking powder, which already has an acidic component in the mix, you'll need an acidic ingredient like brown sugar or honey to activate baking soda.

References

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