I feel like whenever I mention using buttermilk, someone says either “You know you can just add vinegar/lemon juice to regular milk, right?” or “what do you do with the leftover buttermilk?”In response to the first question: I am not a fan of adding vinegar/lemon juice to regular milk and calling it buttermilk. It is not the same. You will absolutely notice a difference.You’d be better off using plain yogurt, possibly thinned with a bit of milk, because you’ll get a better consistency and a more near flavor to real buttermilk.But really, you should just use real buttermilk. One, it’s cheap.Two, people will often ask, how long is buttermilk good for or does buttermilk go bad? In my experience, it lasts forever. In the 10+ years since I started keeping it around as a staple, I have never once had a bottle of buttermilk go bad. Even after two or more months.Three, buttermilk is just not an ingredient that really substitutes well. You’ll get the best flavor, texture, and height when you ac...
