Unsalted butter is a type of butter that does not contain any added salt. It is made from cream that is churned until it separates into butterfat and buttermilk. The buttermilk is then drained off, leaving behind the solid butterfat. Unsalted butter has a rich and creamy flavor and a smooth texture. It is commonly used in baking, as it allows the baker to have better control over the salt content in their recipes. Unsalted butter is also used in cooking and can be melted or added to sauces, sautés, and other dishes.