DIY Buttermilk in 5 Minutes

A quick and easy method to make fresh buttermilk at home using just milk and an acidic ingredient like vinegar or lemon juice.

Buttermilk is a staple in many baking recipes, adding tenderness and a subtle tang. Instead of buying it, you can whip up a batch in minutes with ingredients you likely already have.

The basic ratio is 1 tablespoon of vinegar or lemon juice to 1 cup of milk. This recipe yields 1 cup of buttermilk, perfect for cakes, pancakes, or biscuits. You can also make it vegan or dairy-free by using your preferred plant-based milk.

Ingredients

Servings 4

Converted amounts are rounded.

Method

  1. Place the vinegar or lemon juice in a liquid measuring cup.
  2. Add milk until the total reaches the 1-cup mark. Stir well.
  3. Let the mixture sit for 5 to 10 minutes. You will notice slight curdling or separation.
  4. Use the buttermilk immediately in your recipe as directed.

💡 Tips

  • For best results, use fresh milk and acid. The buttermilk will be slightly thicker after resting.
  • If you need more than 1 cup, simply double the ingredients: 2 tablespoons acid to 2 cups milk.
  • Store leftover buttermilk in the refrigerator for up to a week; shake before using.

Inspired by a recipe from Cookie and Kate

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