Using Milk + Lemon Juice Instead of Buttermilk
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.
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.
How Milk + Lemon Juice Compares for Buttermilk
Quality rating: excellent. The acid curdles the milk, mimicking buttermilk's acidity and thickness.