Easy Buttermilk Substitute

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Learn How to Make Buttermilk with just two ingredients for a buttermilk substitute for cooking and baking! Helpful guide with more substitutes, along with dairy-free and vegan options.

Glass measuring cup with milk, glass bowl with vinegar, and measuring spoons sit on a marble countertop.

Buttermilk is one ingredient that I love to have on hand. But, sometimes, I think I have plenty in the fridge, only to realize that I donโ€™t. And if I’ve got the urge to make a Caramel Cake and I’m out of buttermilk, then I’m making my own!

It is easy to do and only takes two ingredients that work perfectly in baking and cooking. It tastes just like store-bought buttermilk!

What is Buttermilk?

Traditionally, it was the leftover liquid from churning cream to make butter. This is now referred to as traditional buttermilk. What you buy in the grocery stores is now cultured, produced by adding cultures to milk during fermentation to simulate the lactic acid that would naturally occur in the traditional kind.

Buttermilk adds a rich, tangy flavor and a thicker consistency than other kinds of milk. It works to tenderize meat and vegetables. The lactic acid also reacts with other ingredients like baking powder and baking soda in recipes and acts as a leavening agent. This helps batters and doughs to rise and be more tender.

Here’s how you’ll make a simple homemade buttermilk substitute for baking or cooking:

Ingredients

  • 1 cup milk + 1 tablespoon vinegar (distilled white vinegar or apple cider vinegar)
  • 1 cup milk + 1 tablespoon lemon juice

How to Make Buttermilk Substitute

The simplest way to make your homemade buttermilk substitute:

  1. Add a tablespoon of fresh lemon juice or vinegar to a cup of regular or dairy-free milk.
  2. Allow the milk to sit for about 5 minutes to thicken. You can expect it to appear to be slightly curdled.
  3. Stir the mixture to combine and use where buttermilk is needed in your recipe. The texture and consistency will be very similar to traditional buttermilk once it’s mixed as described.

You can use either combination I’ve provided above to make one cup of homemade buttermilk substitute. If you need more or less buttermilk, you can quickly scale the recipe to fit your desired amount.

Also, reference Other Homemade Buttermilk Substitutes to follow.

Cup of milk with a lemon next to it to make homemade buttermilk substitute.

Other Substitutions for Buttermilk

You can use a few different homemade substitutions when a recipe calls for buttermilk. Pick the option that works for you based on what you have available.

Each of these substitutions equals 1 cup of buttermilk:

  • 1 cup plain yogurt or Greek yogurt
  • 1 cup plain kefir
  • ยพ cup sour cream + ยผ cup water or milk
  • 1 cup milk + 1 3/4 teaspoons cream of tartar
  • 1 cup water + 1/4 cup buttermilk powder

Make Dairy-Free and Vegan Buttermilk Substitutes

You can also make an easy dairy-free buttermilk substitute in your recipes. This is perfect for those with dairy allergies or who need a vegan buttermilk substitution.

To make a dairy-free and/ or, use your favorite non-dairy milk such as almond milk, soy milk, coconut milk, rice milk, or oat milk in place of the store-bought buttermilk called for in the recipe! Itโ€™s that easy!

  • 1 cup buttermilk = 1 cup non-dairy milk (coconut, soy, rice, oat, almond) + 1 tablespoon  lemon juice
  • 1 cup buttermilk = 1 cup non-dairy milk (coconut, soy, rice, oat, almond) = 1 tablespoon vinegar (distilled white vinegar or apple cider vinegar)

Then, follow the same recipe steps as those for regular dairy milk.

Storage Tips

To store. Place in an airtight container and store in the refrigerator for up to two weeks.

To freeze. Spoon any unused buttermilk substitute into an ice cube tray with a tablespoon. Place the tray into the freezer until frozen well, about an hour. Remove from the freezer and dispense the frozen cubes into a freezer-safe container. Freeze for up to 3 months.

Glass measuring cup with milk and glass bowl with vinegar to make buttermilk substitute.

Ways to Use Buttermilk

Adds Flavor

It adds a rich, tangy flavor to dishes like salad dressings and dips.

Tenderizes

It’s great for soaking meats and vegetables to make them more tender before cooking, generally frying.

Leavens Baked Goods

It reacts with other chemical leavening agents in recipes to produce gas bubbles, which then help cakes, cookies, and other baked goods to rise.

Here’s how to make my easy buttermilk substitute. I hope you find this helpful!

How to Make Buttermilk

5 from 23 votes
Learnย How to Make Buttermilkย with just two ingredients for a buttermilk substitute for cooking and baking! Helpful guide with more substitutes, along with dairy-free and vegan options.
Prep Time: 10 minutes
Total Time: 10 minutes
Servings: 1 cup

Ingredients

  • 1 cup whole milk, or 2% or 1%
  • 1 tablespoon vinegar , or lemon juice

Instructions 

  • Pour milk into a glass measuring cup. Add vinegar OR lemon juice and allow to sit for about 5 minutes before use. You can expect it to appear curdled. Stir it and then use as you would store-bought buttermilk.

Notes

The recipe may be increased or decreased proportionately.

Additional Buttermilk Substitution options:

  • 1 cup buttermilk = 1 cup plain yogurt or Greek yogurt
  • 1 cup buttermilk = 1 cup plain kefir
  • 1 cup buttermilk = ยพ cup sour cream + ยผ cup water or milk
  • 1 cup buttermilk = 1 cup milk + 1 3/4 teaspoons cream of tartar
  • 1 cup buttermilk = 1 cup water + 1/4 cup buttermilk powder

Dairy-Free Buttermilk:

For dairy-free buttermilk, substitute your preferred non-dairy milk (coconut milk, soy milk, almond milk, rice milk, oat milk, etc.) with the whole milk called for in the recipe.ย 

Video

Nutrition

Serving: 1cup | Calories: 149kcal | Carbohydrates: 11g | Protein: 8g | Fat: 8g | Saturated Fat: 5g | Polyunsaturated Fat: 0.3g | Monounsaturated Fat: 2g | Cholesterol: 29mg | Sodium: 93mg | Potassium: 366mg | Sugar: 12g | Vitamin A: 395IU | Calcium: 301mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Enjoy!
Robyn xo

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About Robyn

Robyn Stone is a cookbook author, wife, mom, and passionate home cook. Her tested and trusted recipes give readers the confidence to cook recipes the whole family will love. Robyn has been featured on Food Network, People, Southern Living, and more.

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Recipe Review




85 Comments

  1. Dee says:

    Is the milk cold, warm or room temperature?

    1. Robyn Stone says:

      Dee, I would use room temperature milk.

  2. Mimi G says:

    Of your many options, do you find any preferable? Or are some better than other depending on what you are using the buttermilk for?

    Thank you for posting all this information. I knew about adding lemon juice to milk, but not about any of the other substitutes.

    1. Robyn Stone says:

      Mimi, I tend to use what I have on hand and I almost always have milk, vinegar, lemon juice.

  3. Vickie Knox says:

    Curious as to why glass measuring cup over plastic? I will be using this idea but since I only have plastic at this time I am hoping I can pour the milk into a plastic measuring cup then before adding the juice or vinegar I will put it into a glass cup. I believe this will be Ok but without knowing why you specifically said glass I am not sure if the outcome will be OK.
    Thanks, please let me know why glass over plastic.

    1. Robyn Stone says:

      Vickie, you can use a plastic measuring cup if you wish. I just always use a glass one.

  4. Poly Marouda says:

    looks good