You could knock me over with a feather.

I picked up some in the grocery store and when I got it home, I was
surprised to notice on the front label, a statement "contains natural
vanilla." I thought I had picked up a new variety (like vanilla Coke)
and was irritated that it wasn't placed where I could notice it when I
bought it. So I called the company to complain and was told that it
always had vanilla (but not enough to reduce the amount needed for
recipes) and it was a marketing decision to put it on the front label.
I checked an old bottle and sure enough, it had vanilla in the list of
ingredients.

Now you know. (If you didn't before.)
Sue(tm)
Lead me not into temptation... I can find it myself!