Using Milk + Lemon Juice Instead of Buttermilk
Reviewed by CupOrGram Editorial TeamData methodology: NIST-derived density references + recipe testing notesMethodology
Ratio
1 cup milk + 1 tbsp lemon juice, let sit 5 minutes
Excellent — nearly identical results
Recipe Adjustment Notes
The acid curdles the milk, mimicking buttermilk's acidity and thickness.
The Science Behind This Swap
The acid curdles the milk, mimicking buttermilk's acidity and thickness.
Measurement Variance Note
For 1 cup references, this ingredient can vary by about 6% across brands and measuring methods (230g-260g per cup). For the most reliable substitution result, measure by weight and test a half batch first.
What Works & What Doesn't
Works Well In
- Muffins & quick breads
- Cookies
- Pancakes & waffles
Use With Caution
- Laminated doughs
- Macarons
- Precision pastry