Creating buttermilk at home is a simple and cost-effective way to enhance your recipes. This easy method requires just two ingredients and a few minutes of your time. Perfect for those who need a quick substitute for store-bought buttermilk.
If you don't usually keep lemon juice or white vinegar in your pantry, you might need to pick these up at the supermarket. Both are common ingredients, but they are essential for this recipe as they help to curdle the milk and create that classic buttermilk texture.

Ingredients for Buttermilk Recipe
Milk: The base of the recipe, providing the liquid needed to create buttermilk.
Lemon juice: An acidic component that curdles the milk to form buttermilk.
White vinegar: An alternative acidic ingredient to lemon juice, also used to curdle the milk.
Technique Tip for This Recipe
To ensure your buttermilk thickens properly, use whole milk instead of low-fat or skim milk. The higher fat content in whole milk reacts better with the acid from the lemon juice or vinegar, resulting in a richer and creamier consistency.
Suggested Side Dishes
Alternative Ingredients
1 cup milk - Substitute with 1 cup almond milk: Almond milk is a great dairy-free alternative that works well in recipes requiring milk.
1 tablespoon lemon juice or white vinegar - Substitute with 1 tablespoon apple cider vinegar: Apple cider vinegar provides the necessary acidity to curdle the almond milk, mimicking the effect of buttermilk.
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How to Store / Freeze This Recipe
- To store your freshly made buttermilk, pour it into an airtight container. This will help maintain its freshness and prevent any unwanted odors from seeping in.
- Place the container in the coldest part of your refrigerator, typically the back of the bottom shelf. This ensures a consistent temperature, keeping your buttermilk fresh for up to 2 weeks.
- If you notice any separation, give it a good shake before using. This is normal and doesn't affect the quality.
- For longer storage, consider freezing your buttermilk. Pour it 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 of freezing. Frozen buttermilk can last up to 3 months.
- When you're ready to use the frozen buttermilk, thaw it in the refrigerator overnight. For quicker thawing, place the container in a bowl of cold water.
- After thawing, you might notice some separation. Simply whisk it back together, and it's ready to use in your favorite recipes.
- Remember, frozen and thawed buttermilk is best used in baking or cooking, as the texture may change slightly.
How to Reheat Leftovers
- Pour the buttermilk into a small saucepan.
- Heat over low to medium heat, stirring occasionally to prevent curdling.
- Use a thermometer to ensure the temperature does not exceed 110°F (43°C) to maintain the texture.
- Alternatively, place the buttermilk in a microwave-safe container.
- Microwave on low power in 15-second intervals, stirring in between, until it reaches the desired warmth.
- For a more even heat distribution, consider using a double boiler method.
- Place the buttermilk in a heatproof bowl over a pot of simmering water.
- Stir gently until warmed through.
Best Tools for This Recipe
Mixing bowl: A container used to combine the milk and lemon juice (or vinegar) together.
Measuring cup: Used to accurately measure 1 cup of milk.
Measuring spoon: Used to measure 1 tablespoon of lemon juice or white vinegar.
Whisk: Helps to thoroughly mix the milk and lemon juice (or vinegar) to ensure even distribution.
Timer: Used to keep track of the 10 minutes needed for the mixture to thicken.
How to Save Time on Making This Recipe
Use room temperature milk: Using room temperature milk helps the lemon juice or vinegar curdle faster, reducing waiting time.
Pre-measure ingredients: Pre-measure the milk and lemon juice or vinegar to streamline the process.
Make in bulk: Prepare a larger batch of buttermilk and store it in the fridge for future use.
Use a whisk: Whisking the milk and acid together can speed up the thickening process.
Microwave briefly: Warm the milk slightly in the microwave before adding the acid to accelerate curdling.

Buttermilk Recipe
Ingredients
Main Ingredients
- 1 cup milk
- 1 tablespoon lemon juice or white vinegar
Instructions
- Mix milk and lemon juice (or vinegar) in a bowl.
- Let it sit for 10 minutes until it thickens.
Nutritional Value
Keywords
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