Call them up and ask what it was.

Capers do not have stems. They are pickled flower buds from the caper bush. (Capparis spinosa)

or, Spanish pickled baby eggplant.

Here's a pic:

http://www.vegajardin.com/spanish-canned-vegetables/eggplant-almagro-igp-95.html

just guessin'...

What I saw last night didn't have an outer husk, and wasn't stuffed with other vegetables. The tips came to a point, and the stems were thinner. But you've definitely given me a starting point. Thanks for the help.

Caperberries are what I had for the first time, last night; they're wonderful. Evidently the capers I've been eating and utilizing in various dishes for years are the buds of the caper bush, while the caperberries are the fruit. They seem to be readily available on-line and perhaps at places like Whole Foods (and probably Trader Joes as well).

Thank you, grasswire. You've done me a genuine favor, and I appreciate it.

I never heard of a caperberry. We have a winnah!

I just saw a jar of those on the shelves and I was going to be able to tell you what they were, and somebody beat me to the answer by a day

Like I said up-thread, I'm a long time fan of capers, so being unaware of caperberries has me feeling a bit miffed. Ah, well.....

In fact, I think I'll stop by tomorrow and buy a fw jars. They absolutely are the best. I put them in salads, and they are especially good with Thousand Island dressing.


Cher

...a local small plates restaurant serves them on a charcuterie plate. I first had them about ten years ago there.