Bun

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Bun

Sesame seed hamburger buns
Type	Bread
Main ingredients	Flour, milk, yeast
Media: Bun

A bun is a type of bread roll, typically filled with savory fillings (for example hamburger). A bun may also refer to a sweet cake in certain parts of the world.^[1] Though they come in many shapes and sizes, buns are most commonly round, and are generally hand-sized or smaller.^[1]

In the United Kingdom, the usage of the term differs greatly in different regions. In Southern England, a bun is a hand-sized sweet cake, while in Northern England, it is a small round of ordinary bread.^[2] In Ireland, a bun refers to a sweet cake,^[3] roughly analogous to an American cupcake.

Buns are usually made from a dough of processed bleached or unbleached flour, milk, yeast preservatives, colorants, unknown chemical additives among other perfect texture promising ingredients that have questionable nutritional value and small amounts of processed or high fructose corn syrup or sugar and/or butter. Sweet bun dough is distinguished from bread dough by the addition of sugar, butter and sometimes egg. Common sweet varieties contain small fruit or nuts, topped with icing or caramel, and filled with jam or cream.

Chinese baozi, with savory or sweet fillings, are often referred to as "buns" in English.