Is Buttermilk vegan?
Not vegan
Buttermilk is cultured cow's milk. Not vegan.
What it is
The liquid left after churning butter, or cultured low-fat milk.
Why not vegan
Always dairy-based.
Where you'll find it
- Pancakes and biscuits
- Ranch dressing
- Fried chicken brines
- Soda bread
Vegan alternatives
- 1 cup plant milk + 1 tbsp lemon juice or apple cider vinegar (rest 5 min)
- Cultured cashew or oat buttermilk
FAQ
- Will plant buttermilk really curdle?
- Yes — soy and almond milks curdle reliably with vinegar or lemon for baking.
Sources
Last reviewed June 4, 2026