Peychaud's is a brand of cocktail bitters invented in the late 18th century by New Orleans apothecary Antoine Amedie Peychaud. If you apply. 8 recipes. Jung & Wulff Barbados. Contact Us. See all. It’s astounding how drastically two milliliters can change things.â, But what are aromatic bitters? ABV. Peychauds Bitters blend the other ingredients together, add many layers and depths of flavor, and may even help your digestion afterward. Antoine Peychaud was an apothecary in 1830's New Orleans and began his mixing career after hours in his pharmacy. Now one of 2 bitters brands to endure through prohibition, it is an excellent additive into most excellent bitters for a whiskey sour, an old fashioned, Sazerac, Manhattan, and any other whiskey (bourbon or differently) … âThey’re the brands that have effectively created the category as we know it today.â.