coup sour cream

Crème fraîche, often called "coup" sour cream in French, is a naturally fermented dairy product made from heavy cream that has been cultured with lactic acid bacteria. Unlike American sour cream, which is produced through direct acidification, authentic crème fraîche develops its characteristic tangy flavor and thick, velvety texture through a slower fermentation process using Lactococcus lactis and other beneficial cultures. The fermentation process also gives crème fraîche a higher fat content (typically 40%) and a more delicate, nutty flavor profile compared to sharper American sour cream variants.

Crème fraîche originated in France and remains integral to French culinary tradition. It has a distinctive smooth, almost spoonable consistency and a subtle sourness that complements rather than overwhelms dishes. The product is stable at high temperatures, allowing it to be used in hot dishes without breaking or curdling, distinguishing it from regular sour cream.

Crème fraîche is a versatile ingredient in French cuisine and increasingly in contemporary cooking worldwide. It is used as a finishing element for soups, particularly potage and consommé, where a dollop adds richness and visual contrast. In sauces, it creates silky, luxurious textures without the risk of curdling when heated, making it ideal for pan sauces with wine or stock reductions. Crème fraîche is also served as an accompaniment to fresh berries and fruit desserts, on baked potatoes, and in baking for coffee cakes and tarts.

Beyond French cuisine, crème fraîche has been adopted in American and European cooking as a substitute for heavy cream in applications where a slight tanginess is desired. It can be whisked like cream for toppings and is sometimes used to enrich mashed potatoes or to lighten chocolate mousse.