Finally! A use for the rind of those expensive fresh pineapples! From Daisy Cooks - "Vinagre -a condiment that gives sparkle, a citrus-fruity tinge, heat, and aroma- takes just about any dish to places it has never been before. I realize that if you don't know about vinagre, you could probably still live a full and happy life. But once you taste it, you'll be lost without it."