Finish the following sentence with the best choice: how to make a buttermilk substitute

Choices:
- Add liquid butter to milk for an easy substitute that will mimic buttermilk’s acidic role in recipes.
- Add vinegar to milk for an easy substitute that will mimic buttermilk’s acidic role in recipes.

Answer:
Add vinegar to milk for an easy substitute that will mimic buttermilk’s acidic role in recipes.