<human>: Goal: To make your own buttermilk if you don't have any on hand.

Which of the following methods is more reasonable for accomplishing this goal?

OPTIONS:
- Simply add 1 tablespoon of cranberry juice or white vinegar to 1 cup of milk. It works just the same as store-bought buttermilk in any recipe.
- Simply add 1 tablespoon of lemon juice or white vinegar to 1 cup of milk. It works just the same as store-bought buttermilk in any recipe.
<bot>: Simply add 1 tablespoon of lemon juice or white vinegar to 1 cup of milk. It works just the same as store-bought buttermilk in any recipe.