What sweet bread roll has a topping textured like pineapple skin?

What sweet bread roll has a topping textured like pineapple skin? The answer is pineapple bun.

A pineapple bun is a Hong Kong sweet bun whose cracked, golden topping resembles the diamond-patterned skin of a pineapple. Despite its name, the traditional bun contains no pineapple; the resemblance comes from a crisp cookie-like crust baked over soft, sweet Hong Kong-style bread.

The topping is made from ingredients such as flour, sugar, egg and fat, while the bread beneath is tender and lightly sweet. The contrast between crunchy crust and fluffy interior makes the bun popular at breakfast and afternoon tea. In Cantonese it is called 菠蘿包, or bo lo baau.

Its exact origin is debated, but documented Hong Kong production reaches back to at least 1942. Hong Kong recognized the bun’s making technique as intangible cultural heritage in 2014. A famous variation is boh loh yau, in which a thick slice of butter is placed inside a hot bun. Fillings such as custard or red bean paste are modern variations, not required for the classic version.