What is creme fraiche?

By Richard Cornish
Updated September 24 2014 - 10:08am, first published July 30 2014 - 1:55pm
Cultured: French toast with berry compote and creme fraiche. Photo: Jennifer Soo
Cultured: French toast with berry compote and creme fraiche. Photo: Jennifer Soo

What is creme fraiche? Is it the same as sour cream? S. McGrath