I've been trying to find this rather simple and what I thought to be common item, and yet every supermarket here only stocks vinagre del vino, which is red wine vinegar. And don't bother asking anyone in any store if they have it, because they will say yes and lead you right to the red wine vinegar, every time! I'm still a little shocked at how hard it is to find it. Does anyone have any ideas? I've already spent more time than I would care to, searching for this.