homemade sour cream

[iveyrock]

I'm not sure if this goes here, or somewhere else...
I am just starting to make my own butter and cheese, and am interested in branching out in other areas as well. I tried to make my own sour cream, but it never turned into sour cream. I used buttermilk that I had from making my own butter. So I am wondering if the problem was that the buttermilk wasn't cultured? I have heard you can use yogurt, has anyone done this? Thanks!
Amber

[momto l&a]

You use cream for making sour cream I use cheese fromage as the culture.

If I use milk instead of cream I get "buttermilk"

I tried to make it raw but found it was to be used up in a day or two where as heated up it will last a couple of weeks. So I bring the milk up to 180 and then cool to 70. I let it set on the counter to culture.

[iveyrock]

sorry, I wasn't clear with that (NAK). I use the cream, but I was using a little buttermilk as an agent to sour it.

[iveyrock]

And that's good to know about raw versus heating it. I am going to have to get a cooking thermometer, I am finding more and more I want to do but can't...