7 Best Baking Substitutes for Buttermilk (2025 Guide)

7 Best Baking Substitutes for Buttermilk (2025 Guide)

17 min read
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That moment of dread is all too familiar: you're halfway through a recipe for fluffy pancakes or tender biscuits, and you realize you're out of buttermilk. Before you run to the store, it's important to understand that buttermilk isn't just a liquid. It’s a key ingredient that performs two crucial functions in baking.

First, its acidity reacts with leavening agents like baking soda. This chemical reaction creates the carbon dioxide bubbles responsible for giving your baked goods a light, airy texture and a superior rise. Second, the acid tenderizes gluten, resulting in a softer crumb and preventing the final product from becoming tough or chewy. Simply swapping it with regular milk just won’t achieve the same delicious results.

This guide provides a comprehensive list of reliable, everyday baking substitutes for buttermilk that you likely already have in your kitchen. We'll explore seven proven methods, from classic pantry hacks using milk and vinegar to modern vegan alternatives. Each option includes precise ratios and usage tips to ensure your recipe turns out perfectly every single time, without an extra trip to the supermarket. You'll learn exactly how to replicate buttermilk's signature tang and tenderizing power, guaranteeing baking success no matter what's in your fridge.

1. Milk + Acid (White Vinegar or Lemon Juice)

This is the most popular and reliable of all the baking substitutes for buttermilk, primarily because it uses common pantry staples. The science is simple: adding an acid like white vinegar or fresh lemon juice to regular milk quickly curdles it, a process known as "clabbering." This reaction mimics buttermilk's tangy flavor and, most importantly, provides the necessary acidity to react with baking soda, ensuring your baked goods rise properly.

This method is a go-to for recipes like pancakes, quick breads, and muffins where leavening is a primary concern. The resulting "buttermilk" has a slightly thinner consistency than the real thing but performs almost identically in creating a tender, moist crumb. Its accessibility makes it a lifesaver when you realize you're out of buttermilk mid-recipe.

How to Prepare and Use

Making this substitute is incredibly straightforward. Simply measure one tablespoon of either white vinegar or lemon juice into a liquid measuring cup. Then, add enough regular milk to reach the one-cup mark.

Give the mixture a quick stir and let it rest at room temperature for 5 to 10 minutes. You'll notice it start to thicken slightly and may see small curds form. This is the sign that your homemade buttermilk is ready to use.

Pro-Tip: For the richest texture and flavor that most closely resembles traditional buttermilk, use whole milk. The higher fat content contributes to a better mouthfeel in the final product, especially in recipes like Southern-style biscuits or rich cakes.

Key Considerations

For a quick reference on how to prepare and use this substitute, the summary below highlights the essential details.

Infographic showing key data about Milk + Acid (White Vinegar or Lemon Juice)

As the visualization shows, the ratio and prep time are simple to remember, making this a reliable method for achieving proper leavening in your baking.

When choosing your acid, consider the flavor profile of your recipe.

  • White Vinegar: This is the most neutral choice. Its flavor is virtually undetectable after baking, making it perfect for delicately flavored recipes like vanilla cakes or when you want other ingredients, like chocolate, to shine. If you need a substitute for white wine vinegar, other options are available, though distilled white vinegar is best here.
  • Lemon Juice: Fresh lemon juice works just as well but can impart a subtle citrus note. This can be a wonderful addition to recipes like lemon scones or blueberry muffins but might not be ideal for something like a chocolate cake.

2. Plain Greek Yogurt + Milk

If you're looking for a substitute that mimics not just the acidity but also the rich, thick texture of real buttermilk, combining plain Greek yogurt and milk is an outstanding choice. The live cultures in Greek yogurt provide a natural tanginess and acidity that activates leavening agents like baking soda, while its creamy consistency adds exceptional moisture and richness to baked goods.

Plain Greek Yogurt + Milk

This method is particularly effective in recipes where a thick batter is desirable, such as for coffee cakes, rich quick breads, and tender scones. The added fat and protein from the yogurt contribute to a soft, tight crumb and a luxurious mouthfeel that is often superior to what thinner substitutes can provide. Brands like Fage and Chobani even highlight how well their products work in cooking and baking applications.

How to Prepare and Use

Creating this buttermilk substitute is a simple matter of thinning Greek yogurt to the right consistency. To make one cup of buttermilk substitute, measure ¾ cup of plain Greek yogurt into a bowl or measuring cup. Add ¼ cup of milk (whole or 2% works best) and whisk vigorously until the mixture is smooth and lump-free.

The goal is to achieve a pourable consistency similar to that of traditional buttermilk. If your Greek yogurt is particularly thick, you may need to add an extra tablespoon of milk to reach the desired texture.

Pro-Tip: Always use plain, unsweetened Greek yogurt. Vanilla or other flavored varieties will introduce unwanted sugars and flavors that can ruin the balance of your recipe. Full-fat or 2% Greek yogurt yields the best results.

Key Considerations

For a quick reference on how to prepare and use this substitute, the video below demonstrates the simple process.

This mixture provides excellent leavening and is one of the best baking substitutes for buttermilk when texture is paramount.

When using this substitute, keep these points in mind:

  • Whisk Thoroughly: Ensure there are no lumps of yogurt remaining. A smooth, homogenous mixture will incorporate more evenly into your batter, preventing dense spots in your final product.
  • Best for Thick Batters: Its creamy texture makes it ideal for recipes like cornbread, coffee cakes, and biscuits, where it contributes to a moist, tender crumb that holds together beautifully. It's also a fantastic base for marinades, like in Blue Hill restaurant's famous buttermilk fried chicken.

3. Sour Cream + Water or Milk

Sour cream is a fantastic baking substitute for buttermilk, especially when you need to add richness and a tender crumb to your final product. Its inherent acidity and creamy texture make it a natural fit. By thinning it with a little water or milk, you can replicate buttermilk's consistency while preserving its characteristic tangy flavor and its ability to react with leavening agents like baking soda.

This substitute shines in recipes where a dense, moist texture is desired, such as coffee cakes, rich chocolate cakes, and tender muffins. Its higher fat content contributes a luxurious mouthfeel that can elevate certain baked goods. Many professional bakeries and established brands like Land O'Lakes recommend this method in their baking guides for achieving superior moisture and flavor.

How to Prepare and Use

To create this substitute, you will thin the sour cream to a pourable, buttermilk-like consistency. For one cup of buttermilk, whisk together ¾ cup of sour cream with ¼ cup of water or milk.

Add the liquid gradually while whisking to ensure a smooth, lump-free mixture. It's best to use ingredients that are at room temperature, as this helps them combine more easily and incorporate seamlessly into your batter.

Pro-Tip: If you use full-fat sour cream, which is recommended for the best flavor and texture, consider slightly reducing the amount of butter or oil called for in your recipe. This helps prevent the final product from becoming overly dense or greasy.

Key Considerations

For a quick reference on how to prepare and use this substitute, the summary below highlights the essential details.

The 3:1 ratio of sour cream to liquid is key, but the choice of liquid can subtly alter your results.

  • Water: Thinning with water is the most straightforward option. It creates a substitute with a clean, tangy flavor that allows the richness of the sour cream to take center stage without adding extra dairy notes.
  • Milk: Using milk to thin the sour cream adds a bit more richness and fat, resulting in a more tender and flavorful baked good. Whole milk will provide the best results, mirroring the creamy quality of traditional buttermilk.

4. Kefir

Kefir is a fermented milk drink with a consistency and tangy flavor profile remarkably similar to traditional buttermilk, making it one of the best baking substitutes for buttermilk available. Rich in probiotics, this cultured dairy product is naturally acidic. This acidity is key, as it reacts perfectly with leavening agents like baking soda to produce a light, tender texture in baked goods.

Its ready-to-use nature makes it incredibly convenient, requiring no extra preparation or mixing. Kefir shines in recipes where buttermilk's signature tang is desired, such as sourdough-style quick breads, savory scones, and coffee cakes. Popularized by brands like Lifeway Foods and Nancy's Yogurt, its application in baking has grown alongside the health food movement.

How to Prepare and Use

Using kefir as a buttermilk substitute is as simple as it gets. You can use it in a direct 1:1 ratio. If your recipe calls for one cup of buttermilk, simply measure and use one cup of plain, unsweetened kefir.

Shake the container well before measuring, as kefir can separate. Pour it directly into your batter as you would with buttermilk. No waiting or modification is needed, which makes it an excellent choice when you're short on time.

Pro-Tip: For an extra tangy flavor and a boost of nutrition, let your kefir sit at room temperature for about 30 minutes before incorporating it into your recipe. This allows the live cultures to become more active, enhancing its flavor profile slightly.

Key Considerations

When using kefir, its simplicity is its greatest strength. However, the type of kefir you choose is crucial for achieving the best results in your baking.

Always opt for plain, unsweetened kefir. Flavored or sweetened varieties will introduce unwanted sugars and tastes that can drastically alter the outcome of your recipe, especially in savory dishes. The consistency of kefir is also very close to buttermilk, so you generally do not need to thin it or make any other adjustments. Its natural acidity is sufficient to activate baking soda, ensuring a proper rise and tender crumb every time.

5. Cream of Tartar + Milk

This method is a baker's secret weapon and one of the most chemically precise baking substitutes for buttermilk. Cream of tartar, or potassium bitartrate, is a dry acid that activates when dissolved in a liquid. When combined with milk, it provides the necessary acidity to react with baking soda for leavening, all without introducing extra liquid or strong flavors like vinegar or lemon juice.

This substitute is particularly favored in professional baking and by renowned bakers like Rose Levy Beranbaum for its neutral flavor profile and reliable leavening power. It's an excellent choice for delicate cakes, cookies, and pastries where you want the primary flavors of vanilla, almond, or butter to remain pure and unaltered. Its dry form also makes it a convenient, long-lasting pantry staple.

How to Prepare and Use

To make this substitute, you will combine cream of tartar with milk. For every one cup of buttermilk required in your recipe, use one cup of regular milk and 1 ¾ teaspoons of cream of tartar.

First, whisk the cream of tartar into a small amount of the milk to create a smooth paste, which prevents lumps. Then, gradually whisk in the remaining milk. Let the mixture stand for 5 to 10 minutes to allow the cream of tartar to fully dissolve and acidify the milk.

Pro-Tip: Sifting the cream of tartar with your other dry ingredients (like flour and baking soda) is another effective way to ensure it disperses evenly throughout the batter and prevents any clumping.

Key Considerations

Precision is key with this method, as too much cream of tartar can impart a slightly metallic taste. The summary below outlines the essential details for a successful substitution.

This method's reliability makes it a go-to in many commercial baking operations where consistency is paramount. Its neutral taste and potent leavening make it a superior choice for certain recipes.

  • Neutral Flavor: Unlike lemon juice, cream of tartar is completely flavorless once baked. This makes it the ideal choice for recipes where you do not want any hint of citrus or vinegar, such as in classic vanilla cupcakes or simple shortcakes.
  • Pantry Stability: As a dry powder, cream of tartar has a very long shelf life, making it a dependable backup when you're out of fresh ingredients. It also has other kitchen uses, like stabilizing egg whites or acting as a cleaning agent. For instance, it can be a key ingredient in cleaning baking sheets.

6. Plant-Based Milk + Acid (Vegan Option)

For those following a dairy-free or vegan lifestyle, this method is a fantastic way to create one of the best baking substitutes for buttermilk without compromising on texture or leavening. It operates on the same scientific principle as using dairy milk: adding an acid to plant-based milk causes its proteins to curdle, thickening the liquid and introducing the necessary acidity for baking recipes.

A glass of plant-based milk next to a lemon and a bottle of vinegar.

This vegan alternative is a staple in the plant-based baking community, popularized by figures like Miyoko Schinner and featured in countless vegan cookbooks. It works wonderfully in recipes from vegan pancakes and scones to dairy-free cornbread, ensuring that the final product is just as light and tender as its traditional counterpart. The key is choosing the right type of plant-based milk.

How to Prepare and Use

The process is identical to the dairy-based version. Measure one tablespoon of either white vinegar or lemon juice into a liquid measuring cup. Next, pour in your choice of unsweetened, plain plant-based milk until you reach the one-cup line.

Stir the mixture briefly and allow it to sit for about 10 minutes. The milk will thicken and may curdle, which indicates it's ready to use. This simple preparation makes it an easy one-to-one swap for buttermilk in nearly any baking recipe.

Pro-Tip: For the most effective curdling that closely mimics traditional buttermilk, use soy milk. Its high protein content allows it to thicken and clabber more effectively than most other plant-based milks, providing a superior rise and texture.

Key Considerations

Not all plant-based milks perform equally. Your choice can impact the final texture and flavor of your baked goods, so it is important to select the right one for your recipe.

Here is a quick breakdown of the best options:

  • Soy Milk: The gold standard for this substitute. Its protein structure reacts strongly with acid, creating a thick, well-curdled mixture ideal for leavening. It has a neutral flavor that works in any recipe.
  • Oat Milk: A great second choice, oat milk creates a good thickness and has a mild, pleasant flavor. It is a reliable option for muffins and quick breads.
  • Almond Milk: While it works, almond milk has a lower protein content and will not curdle as visibly as soy or oat milk. The acidity will still be present, however, ensuring it reacts properly with baking soda. Always use an unsweetened and unflavored variety to avoid unwanted sweetness.

7. Buttermilk Powder + Water

For bakers who frequently use buttermilk, this is arguably the best long-term substitute. Buttermilk powder is real buttermilk that has been dehydrated and turned into a fine powder. It is a shelf-stable pantry staple that provides the authentic tangy flavor and acidity of liquid buttermilk when reconstituted, making it one of the most reliable baking substitutes for buttermilk available.

This method shines in any recipe that calls for buttermilk, from flaky biscuits and tender scones to rich cakes and savory marinades. Because it's a concentrated form of the real thing, it delivers an identical chemical reaction with leaveners like baking soda. Its convenience and long shelf life mean you can have the flavor and function of buttermilk ready at a moment's notice, without worrying about liquid spoilage.

How to Prepare and Use

To reconstitute the powder into a liquid substitute, you typically mix 1/4 cup of buttermilk powder with 1 cup of water. Whisk them together until the powder is fully dissolved. Let the mixture sit for a few minutes to thicken slightly before using it as a direct 1:1 replacement for liquid buttermilk in your recipe.

Alternatively, for an even bigger flavor boost, you can add the buttermilk powder directly to your dry ingredients. Simply whisk 1 to 2 tablespoons of the powder in with your flour, sugar, and leaveners, then add the corresponding amount of water (e.g., 1 cup) when the recipe calls for liquid buttermilk. This method ensures the tangy flavor is distributed perfectly throughout your batter.

Pro-Tip: To avoid lumps when reconstituting, either whisk the powder into the water gradually or sift the powder first. This small step guarantees a smooth, consistent liquid that incorporates seamlessly into your recipes.

Key Considerations

For best results with this versatile substitute, the summary below highlights the most important details. Keeping track of your pantry staples is crucial for any organized cook, and you can learn more about how to categorize recipes and ingredients to streamline your baking process.

When deciding how to use buttermilk powder, consider your recipe’s needs.

  • Reconstituting with Water: This is the most common method and works perfectly for any recipe. It creates a liquid with the correct acidity and consistency to activate baking soda and provide moisture.
  • Adding to Dry Ingredients: This technique is excellent for enhancing the buttermilk flavor in recipes like pancakes, muffins, or breads. It adds a concentrated tanginess without altering the liquid ratios, which is particularly useful for achieving a specific batter consistency. Always remember to add the water separately with the other wet ingredients.

7 Baking Buttermilk Substitutes Comparison

Substitute Implementation Complexity 🔄 Resource Requirements 📊 Expected Outcomes ⭐ Ideal Use Cases 💡 Key Advantages ⚡
Milk + Acid (White Vinegar or Lemon Juice) Low - simple mixing, 5-10 min prep Common pantry items (milk + acid) Good acidity, activates baking soda; thinner texture Baking (pancakes, biscuits, cakes) Always available, cost-effective, quick prep
Plain Greek Yogurt + Milk Medium - thorough whisking needed Greek yogurt + milk Thick consistency, tangy flavor, adds protein Baking, marinades Superior texture, probiotic benefits
Sour Cream + Water or Milk Medium - dilution and gradual thinning Sour cream + water/milk Rich, creamy texture; tender baked goods Cakes, muffins Richness, authentic tang, shelf-stable
Kefir Low - direct 1:1 substitution Ready-to-use kefir Similar to buttermilk with probiotics Baking, drinking Nutritional probiotics, excellent flavor
Cream of Tartar + Milk High - precise measurement required Cream of tartar + milk Neutral flavor, excellent rise in baked goods Professional baking, delicate recipes Superior leavening, long shelf life
Plant-Based Milk + Acid (Vegan Option) Low to medium - similar to milk + acid method Plant-based milk + acid Proper acidity, varies in texture/flavor Vegan/lactose-free baking Dairy-free, accommodates dietary needs
Buttermilk Powder + Water Medium - reconstitution or direct addition Buttermilk powder + water Authentic buttermilk flavor, convenient storage Baking (dry or liquid substitute) Long shelf life, no refrigeration before use

Choosing Your Best Buttermilk Substitute

You've just explored seven reliable baking substitutes for buttermilk, each with its unique strengths. With these options, a missing ingredient never has to derail your baking plans again. From quick fixes to pantry staples, the right choice is always within reach, ensuring your biscuits are fluffy, your pancakes are tender, and your cakes are moist.

The key is understanding that the best substitute is contextual. It depends entirely on what you have on hand and the specific demands of your recipe. Mastering these substitutions is about more than just following a ratio; it’s about learning to adapt and control the final outcome of your baked goods.

Recapping Your Top Options

Let's quickly review the core takeaways to help you make the best decision for your next baking project:

  • For Speed and Simplicity: The classic Milk + Acid (Vinegar or Lemon Juice) method is your go-to. It’s nearly foolproof, uses common ingredients, and delivers the necessary acidity for chemical leavening in just a few minutes.
  • For Richness and Moisture: When you want a denser, richer crumb, like in a coffee cake or thick muffins, Thinned Greek Yogurt or Sour Cream are excellent choices. They add a wonderful tang and a luxurious texture that regular buttermilk can't always match.
  • For Probiotic Power and Direct Replacement: Plain, unflavored Kefir is arguably the most direct one-to-one substitute. It has a similar consistency and tang, plus it brings the added benefits of probiotics, making it a fantastic choice for everything from scones to marinades.
  • For the Well-Stocked Pantry: For the dedicated baker, Buttermilk Powder is a game-changer. It's shelf-stable, cost-effective, and allows you to make exactly the amount of buttermilk you need, eliminating waste. Similarly, keeping Cream of Tartar on hand provides a neutral-flavored acid option that won't impact the taste of delicate bakes.

Making the Right Choice Every Time

Think about the final product you want to create. Is it a light and airy pancake? The milk and acid or cream of tartar methods are perfect. Are you making a rich, decadent chocolate cake that needs extra moisture? Reach for sour cream or Greek yogurt. This strategic thinking is what elevates good baking to great baking.

By understanding these baking substitutes for buttermilk, you've added a crucial layer of flexibility and creativity to your kitchen skills. You are no longer bound by a rigid ingredient list. Instead, you're empowered to make smart, effective swaps that save you a trip to the store and deliver delicious, consistent results. Now you can approach any recipe calling for buttermilk with complete confidence, knowing you have a full arsenal of solutions ready to go.


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