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A small glass jug of homemade buttermilk is being poured into a white bowl. Surrounding the bowl are some dried flowers, a striped cloth and an old recipe book.

Homemade Buttermilk With Cream of Tartar

5 from 7 votes
You’ll often find buttermilk listed in recipes, but it’s not always something you have on hand. The good news? Making homemade buttermilk is quick and easy with just a few simple ingredients. Here’s how to do it in minutes!
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Course: ingredient
Cuisine: American, British
Prep Time: 5 minutes
Rest Time: 15 minutes
Total Time: 20 minutes
Servings: 1 Cup
Calories: 181kcal
Author: Rebecca Foxley

Ingredients
 
 

  • 250 ml Full-Fat Milk
  • 10 g Cream of Tartar
  • 1 tsp White Vinegar

Instructions

  • In a bowl, pour the milk and add the cream of tartar.
  • Add the white vinegar.
  • Mix the ingredients thoroughly until no lumps of the powder remain.
  • Let the milk stand undisturbed at room temperature for 15 minutes.
  • The milk will start to curdle. Stir it well before using.
  • Transfer the homemade buttermilk to an airtight container and store it in the fridge.

Video

Recipe Notes

 
  • You can use low-fat milk as a substitute, but the finished product will be thinner in texture. Add an extra 1 tsp of vinegar if you wish to use low-fat milk. 
  • You can substitute the vinegar for lemon juice if desired. 
  • You can store homemade buttermilk in the fridge for up to 3 days. 

Nutrition Estimate

Calories: 181kcal | Carbohydrates: 18g | Protein: 8g | Fat: 8g | Saturated Fat: 5g | Polyunsaturated Fat: 0.3g | Monounsaturated Fat: 2g | Cholesterol: 31mg | Sodium: 104mg | Potassium: 2039mg | Fiber: 0.02g | Sugar: 12g | Vitamin A: 418IU | Vitamin C: 0.03mg | Calcium: 318mg | Iron: 0.4mg