Wiktionary
n. A traditional Filipino pie made with young coconuts and condensed milk.
Wikipedia
Buko pie is a traditional Filipino baked young-coconut (malauhog) custard pie. It is considered a specialty in the city of Los BaƱos, Laguna located on the island of Luzon.
Popular with Filipinos, it resembles a coconut cream pie, except that it is made with young coconuts (buko in Tagalog) and has neither cream in the coconut custard filling or meringue swirls on top of the baked coconut custard. Instead, the pie uses sweetened condensed milk, making it denser and healthier. The pie is made with buko meat. There are also variations of the pie, which are similar but use slightly different ingredients, such as macapuno pie, that uses a special type of coconut which differs from ordinary coconut as it is thick and sticky. The pie was originally a delicacy only available in the Philippines, but blast freezing technology has allowed buko pie-makers the ability to export. As it has become easier to transport and more accessible around the world, people are able to buy it as a pasalubong or homecoming present after having visited the Philippines. Buko pie is traditionally plain, nowadays flavorings such as pandan, vanilla, or almond essences are used. Buko pie is similar to the Dutch-Indonesian klappertaart and the South African klappertert. Klappertaart differs from the Filipino buko pie as it is a baked creamy coconut custard without the crust, and contains raisins and nuts. Klappertert is most akin to the Filipino buko pie as it also has a crust, but differs in that it also adds apricot jam and a dash of cinnamon to the coconut custard.