Buttermilk Substitute
Make a quick buttermilk substitute with milk and acid.
About Buttermilk Substitute
Adding a tablespoon of acid to each cup of milk causes it to thicken and sour into a usable buttermilk stand-in. Buttermilk's acidity is part of its leavening role in baking, so recreating the acidity keeps recipes turning out the same.
Formula
Buttermilk Substitute
Acid = buttermilk cups x 1 tbsp per cup
- acid
- Lemon juice or white vinegar added to milk
Worked example
With the default values below, Buttermilk Substitute returns Acid to Add of 1.00. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Buttermilk neededminimum 0.1 cups
- 1 cups
Results
- Acid to Add
- 1.00 tbsp
- Milk Needed
- 1.00 cups
- Note
- Stir in lemon juice or vinegar and rest 5 min
Step by step
- 1Values used
- 2Buttermilk Substitute
- 3Acid to Add= 1.00 tbsp
- 4Milk Needed= 1.00 cups
- 5Note= Stir in lemon juice or vinegar and rest 5 min
Assumptions and limits
- The result is derived only from the single input listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is Buttermilk Substitute calculated?
Acid = buttermilk cups x 1 tbsp per cup Adding a tablespoon of acid to each cup of milk causes it to thicken and sour into a usable buttermilk stand-in.
Why does Buttermilk Substitute matter?
Buttermilk's acidity is part of its leavening role in baking, so recreating the acidity keeps recipes turning out the same.
What values do I need to enter?
This calculator takes 1 input: Buttermilk needed. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.