Can I substitute lower fat creme fraiche for single cream in any savoury recipe?

I%26#039;m thinking particularly of beef stroganoff in which I usually use single cream or soured cream|||yeah my mum does and it always tastes nice =]|||yes and its nicer has lighter consistancy in the taste and lot less fattening!|||Hiya hon :o) xx It should be fine to use creme fraiche in your Stroganoff - I%26#039;ve used it before when I was out of soured cream - and it tasted just as good! Less calories and easier on the waistline too! xxx