How to Make Homemade Buttermilk (Easy Substitute)
This page may contain affiliate links. Learn More.
Make homemade buttermilk in minutes with this easy substitute using milk and vinegar or lemon juice. A basic cooking skill that is perfect for baking and cooking.
There’s nothing worse than getting halfway through a recipe and realizing you don’t have buttermilk. Whether you’re making pancakes, biscuits, or a favorite family recipe, it always seems to happen at the worst time.
The good news is—you don’t need to run to the store. You can make a simple homemade buttermilk substitute my grandma taught me in just a few minutes using ingredients you probably already have on hand. And it actually works.
What Is Buttermilk (and Why You Need It)
Buttermilk isn’t just about flavor—it plays an important role in baking. My grandma loved drinking buttermilk and she usually had it on hand, but that’s not the case for me. I do keep it in the freezer sometimes, but I’m certainly never interested in drinking it.
Buttermilk adds a slight tang, helps tenderize baked goods, and reacts with baking soda or baking powder to help things rise. That’s why recipes like pancakes, muffins, and biscuits turn out so soft and fluffy when buttermilk is used.
A good substitute needs to mimic that acidity—and that’s exactly what this simple method does.
The Simple 2-Ingredient Buttermilk Substitute
You only need two basic ingredients:
- 1 cup milk
- 1 tablespoon lemon juice or white vinegar
That’s it.
Stir the lemon juice or vinegar into the milk and let it sit for about 5–10 minutes. It will start to look slightly curdled—that’s exactly what you want.
Once it thickens a bit, it’s ready to use just like regular buttermilk.
How to Use Homemade Buttermilk
You can use this substitute in almost any recipe that calls for buttermilk.
It works great for:
- Pancakes and waffles
- Biscuits
- Muffins
- Cakes
- Quick breads
Just use it in a 1:1 ratio—no adjustments needed. I never thought it would taste as good but it’s amazing how similar the flavor is in your baked goods. Remember that grandma is always right and if she tells you to try something, believe her and do it like I did. I’ve been using this trick my whole life.
Tips for Best Results
Whole milk works best because it gives a richer texture, but you can use whatever milk you have on hand.
If you’re using lower-fat milk, it will still work—it just may not be quite as creamy.
Don’t skip the resting time. That 5–10 minutes is what allows the milk to “sour” and create the right consistency.
This homemade buttermilk substitute works best in baked goods where buttermilk is used for texture and acidity.
Real-Life Tip
Once you start using this trick, you’ll probably stop buying buttermilk altogether.
It saves money, reduces waste, and makes it so much easier to cook on the fly—especially on busy days when running to the store just isn’t happening. But don’t forget if you do have buttermilk, it does freeze well. I’ve always done that.
Recipes That Use Buttermilk
For recipes that use this tangy, rich ingredient, real or homemade, check these out:
- Grandma’s Old Fashioned Biscuits
- Restaurant Style Ranch Dressing Recipe
- Buttermilk Bread Recipe
- Buttermilk Crispy Fried Chicken
Making homemade buttermilk is one of those simple kitchen tricks that makes life easier. It’s quick, reliable, and uses ingredients you already have.
Next time a recipe calls for buttermilk and you don’t have any, don’t stress—just make your own and keep right on cooking.
