Butter is a staple in many countries. It is used daily by many people as a spread on toast, bread, and sandwiches. In cooking, it is a key ingredient in sauces, pastries, creams, and soups. Flavored butters, containing garlic, herbs, lemon, and/or nuts, are used to season seafood, vegetables, and potatoes. Butter (with the exception of ghee) should never be cooked at high temperatures, as it burns easily.