|Place of origin||Australia|
|Main ingredients||Coconut icing|
|Cookbook: Boston bun Media: Boston bun|
A Boston bun is a large spiced bun with a thick layer of coconut icing, prevalent in Australia and New Zealand. Traditionally the bun contained sieved potato, and modern versions sometimes contain raisins. It is often served sliced, to accompany a cup of tea. The origin of the name is unknown.
In New Zealand they're often called a Sally Lunn, especially in the North Island.