Robert Cooper is a French liqueur producer best known for creating St-Germain, an elderflower liqueur that launched in 2007. The brand operates from France and focuses specifically on this single premium liqueur product, which helped establish the modern craft liqueur category.

St-Germain is made from fresh elderflower blossoms that are hand-picked during a brief harvest window each spring. The flowers are macerated and distilled to create a liqueur with delicate floral notes and subtle sweetness. This elderflower liqueur became influential in contemporary cocktail culture, particularly in upscale bars where bartenders use it to add floral complexity to classic and modern cocktail recipes.

The brand's concentrated focus on elderflower as a single botanical distinguishes it from multi-botanical liqueurs. St-Germain's clean, aromatic profile has made it a staple ingredient for mixologists seeking to incorporate natural floral elements into their cocktail programs.