Preheat oven to 350°F. Preparing the filling: Leaving skins on, halve plums, remove and discard pits and slice into thin wedges (about 1⁄4 inch thick). Place in large mixing bowl and set aside.

Kaohsiung's green plum cultivation covers 1,378 hectares across Liouguei, Jiaxian, Tauyuan, and Namasia districts. The city ...