Crème fraîche is a thick, creamy dairy product originating from France. It is made by adding a bacterial culture to heavy cream, which thickens it and gives it a slightly tangy flavor. This versatile ingredient is often used in cooking, baking, and as a topping for various dishes. In addition to its culinary uses, crème fraîche can be a healthier alternative to sour cream due to its higher fat content and lower acidity. It can be used in sauces, soups, and desserts, enhancing the richness and creaminess of recipes while providing a unique taste.