Buttermilk powder is a pantry staple that can make your baking and cooking so much easier. Keep reading to learn all about this versatile ingredient, how to use it, delicious recipes to try, and tips for storing it properly. What is Buttermilk Powder? Buttermilk powder is simply liquid buttermilk that has been dehydrated into a fine, creamy powder. It looks similar to nonfat dry milk powder. To make buttermilk powder, liquid buttermilk is heated to remove most of the moisture...