Grey Poupon is a brand of mustard that originated in France in the 18th century. It is known for its smooth texture and distinctive flavor, which comes from a blend of white wine and high-quality mustard seeds. The mustard is often used as a condiment for sandwiches, meats, and salads, adding a gourmet touch to various dishes. The brand gained popularity in the United States during the 1980s, thanks in part to its memorable advertising campaigns. Grey Poupon is often associated with sophistication and is frequently featured in upscale dining settings, making it a favorite among food enthusiasts and chefs alike.