Question: what is the difference between cream fraiche and sour cream?
Answer: Sour cream, which has a fat content of around 20 percent, is made by mixing cream with a lactic acid culture; the bacteria thickens and sours it. ... Creme fraiche is thicker, richer (see: fat content), and less tangy than sour cream, and since it won't curdle if you boil it, it's great to use in soups and sauces.