Crème Fraîche
What it is
Crème fraîche is French cultured cream: thick, rich, and gently tangy, with a fat content high enough that it can be boiled without splitting. It is the everyday cooking and finishing cream of French kitchens and the single best Western substitute for Eastern European smetana — for the same reason: fat-driven heat stability.
How it's made
Cream (typically 30–45% fat) is inoculated with lactic-acid bacteria and left to culture until it thickens and develops a mild, nutty tang. Traditional crème fraîche relies on the bacteria naturally present in unpasteurized cream; modern production adds a starter culture. The high fat is essential to its character and its cooking behavior.
Flavor profile
Rich and velvety with a clean, mild, slightly nutty tang — far less sharp than sour cream. Thick and spoonable, glossy, luxurious on the palate.
Culinary uses
Stirred into hot sauces, soups, and pan reductions to enrich and round them (where it will not curdle because of its fat), spooned over fruit and desserts, folded into quiche and gratins, and used wherever a French recipe wants richness with a whisper of tang. Its defining cooking virtue is heat stability.
Regional variations
Crème fraîche d'Isigny (Normandy) holds AOP status and is a benchmark. Fat levels and tang vary by producer; "crème fraîche épaisse" is the thick cultured kind, "crème fraîche liquide" a pourable lighter version.
Cultural & historical context
Crème fraîche is foundational to French regional cooking, especially of Normandy and the dairy north, and embodies the French preference for cultured, nuanced cream over plain sweet cream. Crème fraîche vs. sour cream — the crucial distinction: sour cream (especially American) is lower in fat (~18–20%) and often stabilized, so it splits when boiled; crème fraîche (30–45% fat) stays smooth in hot dishes. This is precisely why crème fraîche, not sour cream, is the right substitute in a stroganoff or a pan sauce, and why swapping the two in the wrong direction breaks sauces.
Reference notes
Tags: `cultured-cream`, `high-fat`, `heat-stable`, `mild-tang`, `french`, `AOP`. Related ingredients: smetana, double cream, mascarpone, malai. Related cuisines: French, Norman. Suggested links: Sour Cream (Smetana), Double Cream, Mascarpone, Quiche.