Butter is a dairy product. It remains solid at room temperature and is made by churning fresh or fermented cream or milk. This is done in order to separate butterfat from the buttermilk. It is best used as a bread spread.
Other uses include cooking especially baking, sauce making and pan frying. It is also used melted as a condiment on cooked vegetables. It consists of butterfat, water, and milk proteins and often seasoned with salt.