Next time you get the urge to whip up a batch of pancakes or biscuits from scratch, but don’t have any buttermilk on hand, follow these steps to make a homemade version in minutes. Simply add one tablespoon of freshly squeezed lemon juice to a cup of regular milk. Let the mixture sit at room temperature for about ten minutes. The acid in the lemon juice will cause the milk to curdle, giving it the thick texture of buttermilk.
The term buttermilk was originally used to refer to the liquid left over when cream was churned into butter. Today, buttermilk is mass produced by adding bacteria to regular milk. It gives baked good added moisture and texture.