Creating buttermilk at home is a simple and quick process, especially when you need a dairy-free alternative. This recipe uses soy milk and lemon juice to achieve the same tangy flavor and consistency as traditional buttermilk.
If you don't usually have soy milk at home, you can find it in the dairy or plant-based milk section of your supermarket. Lemon juice is a common household item, but if you need to buy it, look in the produce section or the juice aisle.

Ingredients for Buttermilk Recipe
Soy milk: A plant-based milk alternative that provides a creamy texture and neutral flavor.
Lemon juice: Adds acidity to the soy milk, causing it to curdle and mimic the texture and tanginess of traditional buttermilk.
Technique Tip for This Recipe
When making buttermilk with soy milk, ensure the lemon juice is freshly squeezed for the best results. Fresh lemon juice contains more active acids that help the soy milk curdle more effectively, giving you a thicker and creamier buttermilk.
Suggested Side Dishes
Alternative Ingredients
soy milk - Substitute with almond milk: Almond milk has a similar consistency and neutral flavor, making it a good alternative for creating vegan buttermilk.
lemon juice - Substitute with apple cider vinegar: Apple cider vinegar has a similar acidity level to lemon juice, which helps to curdle the plant-based milk and create a buttermilk-like texture.
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How to Store or Freeze This Recipe
Pour the buttermilk into an airtight container. This helps maintain its freshness and prevents any unwanted odors from seeping in.
Store the container in the refrigerator. Buttermilk can last up to a week when kept chilled, ensuring you have a ready supply for your favorite recipes.
If you need to keep it longer, consider freezing. Pour the buttermilk into ice cube trays for easy portioning. Once frozen, transfer the cubes to a freezer-safe bag or container.
Label the container with the date. This helps you keep track of how long it has been stored, ensuring you use it within a reasonable time frame.
When ready to use, thaw the buttermilk cubes in the refrigerator overnight. Alternatively, you can place them in a bowl of warm water for a quicker thaw.
Give the thawed buttermilk a good stir before using. This helps reincorporate any separation that may have occurred during freezing.
Use the thawed buttermilk in your favorite recipes just as you would fresh. It works wonderfully in pancakes, waffles, biscuits, and more.
Avoid refreezing thawed buttermilk. For the best quality and taste, only freeze and thaw once.
How to Reheat Leftovers
- Pour the buttermilk into a microwave-safe bowl and cover it with a microwave-safe lid or plate. Heat on medium power for 30-second intervals, stirring in between, until it reaches the desired temperature.
- Transfer the buttermilk to a small saucepan. Warm it over low heat, stirring occasionally, until it is heated through. Be careful not to let it boil, as this can alter the texture.
- If you prefer a more controlled method, place the buttermilk in a heatproof bowl and set it over a pot of simmering water (double boiler method). Stir gently until it is warmed to your liking.
Best Tools for This Recipe
Mixing bowl: A container used to combine the soy milk and lemon juice.
Measuring cup: A tool to accurately measure 1 cup of soy milk.
Measuring spoon: A tool to measure 1 tablespoon of lemon juice.
Whisk: An instrument to stir the soy milk and lemon juice together.
Timer: A device to keep track of the 5 minutes needed for the mixture to curdle.
How to Save Time on Making This Recipe
Measure ingredients in advance: Pre-measure the soy milk and lemon juice so they are ready to mix quickly.
Use a whisk: Stir the soy milk and lemon juice with a whisk to ensure they combine thoroughly and curdle faster.
Room temperature ingredients: Use soy milk at room temperature to speed up the curdling process.
Batch preparation: Make a larger batch of buttermilk and store it in the fridge for up to a week to save time on future recipes.

Buttermilk Recipe
Ingredients
Main Ingredients
- 1 cup Soy milk
- 1 tablespoon Lemon juice
Instructions
- 1. Pour the soy milk into a bowl.
- 2. Add the lemon juice and stir well.
- 3. Let it sit for 5 minutes to curdle.
- 4. Use as needed in recipes.
Nutritional Value
Keywords
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