Buttermilk is a sour and smooth dairy thing often used to make treats, food or as a cool drink. It’s made from milk mixed with a type of bacteria that makes it taste sour. Buttermilk does not have butter, but its name comes from the old way of making it with what’s left after churning out butter. Buttermilk is famous for being good in many foods. It helps to make things soft and adds a small sour taste to cakes, pancakes and sauce-like dressings. It’s also a favorite place to make cool drinks and smoothies. Buttermilk is a special taste food. It can be used in cooking. People love it because it makes foods tasty and deep flavored.