I've seen many recipes that use sour yogurt as a main ingredient, but I've been unable to find sour yogurt where I live, and I wonder if it's ok to use sour cream instead of sour yogurt. I know ...
Possible Duplicate: Is it possible to make Sour Cream at home? I make yogurt by adding a small amount of yogurt to milk, heating it slightly (barely in this weather!) and letting it sit ...