How To Make Vegan Buttermilk: Easy Recipe, Only 2 Ingredients

5 minutes, 2 ingredients easy recipe for a vegan buttermilk, which is inevitable ingredient in vegan baking.

This recipe requires only 2 ingredients and is totally hands-off.

Vegan Buttermilk is not only tasty and refreshing drink, but it is also great addition to plant based cakes, soups, smoothies and.. cookies!

Why should we make Vegan Buttermilk?

  • it is very useful ingredient in vegan baking
  • it makes vegan cakes rise fantastically
  • it’s great addition to smoothies
  • while vegan milk is easily accessible I never found vegan buttermilk in the store
  • little work involved

What do we need to make Vegan Buttermilk?


Use unsweetened regular soy milk for the best results, if you want a thick and creamy vegan buttermilk. If I’m using it in a cake and want some vanilla aroma, I go for soy vanilla milk (my favorite in coffee, btw). Soy milk works best from all the plant based milks I have tried. It has high protein content and thus curdles easily.

See this recipe for Best Vegan Cottage Cheese if you wonder what else you can magically create by mixing milk and lemon juice.

If you have soy allergy, go for almond milk, it will curdle a little, but the buttermilk will be a little thinner.

Vegan Buttermilk in a blender container with lemons in the background.


We need acid to start curdling process in milk. In my opinion lemon juice works best and provides better tasting buttermilk. What if you don’t have lemons? Any acid will do, so: apple-cider vinegar or grape vinegar. The taste might be a little stronger and more acidy if using vinegar.

How to make Vegan Buttermilk?

Vegan Buttermilk in a blender container with lemons in the background.

5 minutes, 2 ingredients easy recipe for a vegan buttermilk, that is inevitable ingredient in vegan baking.

Total Time: 5 minutes

1. Measure & mix milk and lemon juice

Measure 1 cup of plant milk. Squeeze 2 table spoons of lemon juice in, make sure to avoid pits.
Mix milk and lemon juice well.

2. Leave to thicken

Leave the mixture on the counter to thicken. 5 minutes should be enough.


  • Curdling works best at higher temperatures, so use room temperature milk instead of the one from the fridge
  • If you find your soy buttermilk too thin, try adding some more lemon juice.
Blueberries, bananas and rolled oats with vegan buttermilk in a blender container.

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How to use Vegan Buttermilk?

You can use vegan buttermilk in all the recipes that call for a dairy buttermilk. You can also drink it just as it is – it is very refreshing, especially when cold.


People, who are not used to vegan baking, ask me how is it possible that my cakes are fluffy and rise so well without eggs. Vegan Buttermilk is one of the answers to that question. It is acidic, thanks to lemon juice and reacts with baking soda to leaven the cake perfectly.


If you want to whiten, add creaminess, but also a little tang to the soup or stew, vegan buttermilk is a perfect addition. You can use it instead of plant based cream and stir it for example into Traditional Polish Beet Soup.


Vegan Buttermilk is a fantastic substitute for milk in fruit smoothies and shakes. It adds a bit of a tang and has considerably thicker texture. This Blueberry Banana Oat Smoothie is a good example of that.

Blueberry Banana Smoothie with Vegan Buttermilk, bananas and lemons in the background.

Questions and Answers

How to store Vegan Buttermilk?

This buttermilk is safe to store for up to 3-4 days in an air tight container in the fridge. Since the recipe is so easy and requires only two ingredients I haven’t tried to freeze it yet. It is best to prepare it every time you need fresh buttermilk.

What is a vegan substitute for buttermilk?

You can use couple of plant based products as a substitute for buttermilk:

  • plant based yoghurt
  • plant based cream
  • cream made of cashew nuts
  • silken tofu blended with plant milk

It is however super easy to prepare Vegan Buttermilk with only 2 ingredients and 5 minutes. So if you have plant based milk and lemon juice use this recipe to prepare plant buttermilk that is tasty and universal.

How did you like my guide on How To Make Vegan Buttermilk? Feel free to share it on Pinterest and Yummly!

Homemade vegan buttermilk pin.

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