2 c heavy cream
2 Tbsp buttermilk
Crème Fraîche versus Sour Cream: You might be tempted to ask
the question as to why use Crème Fraîche over sour cream. First of all, Crème
Fraîche is higher priced than sour cream, sometimes costing as much as 8 – 10
bucks for a small container. So, why is it more expensive? Well, Crème Fraîche
has a fat content of up to 45%, and therefore has a velvety texture on the
tongue, and a richer flavor. On the other hand, sour cream only has a fat
content of 20%. Sour cream is made by adding lactic acid cultures to cream;
while Crème Fraîche is made by adding a starter culture. The difference in
production gives sour cream a characteristic sour taste, and Crème Fraîche a
mellow taste. In addition, because of the high fat content of Crème Fraîche, it
maintains its structure when exposed to high heat (it will not curdle like sour
cream), so it is an excellent option for use in sauces and soups. Crème Fraîche
works well, when you need a delicate flavor, and one that will not overpower
the dish. I use it in desserts, when I do not wish to use whipped cream, and it
is wonderful when drizzled over some freshly-sliced fruit. Because of its
sharpness, sour cream can be used to mellow a really spicy dish, so it works
well with zesty American foods, and even Mexican.
Add the cream, and the buttermilk to a container, and mix.
Let sit loosely covered on your countertop for about 12 hours.
Chef’s Tip: You
can taste it at any time you wish, and stop the process by sealing it and
placing it in the fridge. If you wish the recipe to resemble Mexican Crema,
then stop the process at about 6 – 7 hours. Perfect for drizzling over tacos.
If you want it to get thicker with more of a tang to it, then let it sit long
than 12 hours. The secret is to taste, and then stop when you like what you
taste.
If you have a cool kitchen, the process might take longer…
up to 24 hours or more.