The Answer to My Question

 這些是糖蘋果.

These are sugar apples.

Before knowing what these were, I cut one open, cut off the peel and removed the seeds.  The verdict: crunchy and tasteless.  I wondered if they should be cooked. Are they a fruit or a vegetable?

Then I learned that they are sugar apples also known as Buddha fruit.  When the peel turns somewhat black, like a banana, you cut it open and it should be fragrant, sweet and creamy.  You're supposed to be able to eat it with a spoon.