Mock Creme Fraiche Recipe:

Step 1

In a jar with a lid, place whipping cream and buttermilk or sour cream; cover securely and shake 15 seconds.  Set aside at room temperature for 24 hours or until very thick.  Stir once or twice during that time.  NOTE:  Cream will thicken faster if the room is warm.  If it turns out that it's too thin, try to keep it in a warm place and continue fermenting it.

Step 2

Hint:  Preheat oven at 200 degrees F.  Then turn oven off and place the jar with the cream in the oven.

Step 3

Stir thickened creme fraiche well.  Refrigerate at least 6 hours before serving.

Step 4

Cover tightly and store in refrigerator for up to 2 weeks.