Which country is ube cheesecake from?

Ube cheesecake is from the Philippines.

It is a Filipino dessert built around ube, the purple-fleshed yam also known as purple yam. The cheesecake commonly combines cream cheese with ube halaya, a sweet purple-yam spread made with ingredients such as milk, sugar, and butter. Its vivid violet color comes naturally from the ube rather than from the country names offered as distractors.

Many versions use a chilled base of crushed graham crackers, sugar, and butter. The filling may be baked with eggs or prepared as a no-bake mixture that sets in the refrigerator. Ube cheesecake can also appear as bars or cupcakes, with additions such as coconut, peanuts, whipped cream, or buttercream.

A frequent mix-up is confusing ube with taro or assuming that the dessert is Japanese because Japan has its own well-known cheesecake styles. Ube desserts—including ube cake and ube ice cream—are strongly associated with Filipino cuisine, while the cheesecake itself can be adapted into several modern formats.