Today I was looking up a recipes for Potatoes Au Gratin for something a bit
different and found Creme Fraiche in several recipes. I don't have any here
and am too dang lazy to go get some so I was checking my substitutions. A
variety of substitute suggestions in various recipes said heavy cream, one
said sour cream can be used almost interchangeably with craime fraiche,
full-fat sour cream or yogurt might be acceptable though not perfect , a
homemade recipe requires a purchased culture or heating cream/buttermilk
heated then stored in a container at room temp for 24 hours. I realize I
should just go buy some but after a week of being terrbly ill I am lucky to
feel like a bit of cooking. So, best substitution? most like creme fraiche?
I have heavy cream, sour cream, cream cheese, milk, evaporated milk,
probably a couple of other things I'm not remembering right now.

Thanks for any suggestions/guidance.

Cindi