Toast

Toast is a slice of bread that has been browned by exposure to radiant heat. This browning is the result of a Maillard reaction, altering the flavor of the bread as well as making it firmer so that it is easier to spread toppings on it. Toasting is a common method of making stale bread more palatable. Bread is often toasted using a toaster, an electrical appliance with heating elements. Toaster ovens are also used for toasting bread.

Toast is commonly eaten with butter or margarine and sweetened toppings such as jam or jelly. Regionally, savoury spreads such as peanut butter or yeast extracts may also be popular. Toast is a common breakfast food. When buttered, toast may also be served as accompaniment to savoury dishes such as soups or stews, or topped with other ingredients such as eggs or baked beans as a light meal. While slices of bread are a commonly toasted food, bagels and English muffins are also toasted. Toast may contain carcinogens caused by the browning process.

https://en.wikipedia.org/wiki/Toast