Buttermilk always seems to turn up as the missing ingredient, but fortunately it's simple to make at home with common ...

To make homemade buttermilk it is a simple process that requires only two ingredients: regular milk and an acid. The acid can be in the form of vinegar, lemon juice, or cream of tartar.

Countless recipes, from the most luscious quickbreads and impossibly flaky biscuits to lighter-than-air pancakes and tangy ...

Buttermilk is a secret weapon in the kitchen, turning ordinary baking recipes into moist, tender, and delicious masterpieces.

if you don't have a ready supply of buttermilk, you can make a quick substitution for buttermilk by souring some fresh milk. Add 1 tbsp of lemon juice to every 100ml of milk called for in the recipe.

As this is not readily available or always to hand, I have resorted to adding a little vinegar to milk. What difference does buttermilk make to the recipe? What can be used as a substitute?