Ithaca, New York - Culture. 1  Founded in 1983, the Sciencenter, is a non-profit hands-on science museum, accredited by the American Alliance of Museums (AAM) and is a member of the Association of Science-Technology Centers (ASTC) and Association of Childrenâs Museums (ACM).
When substituting sour cream for plain yogurt, or vice versa, it's quite easy: the basic rule of thumb is that you can just use the same amount. This is especially true when you're using it uncooked, like for dips, salad dressings, or baked potatoes.
Along with eggs, I've used previously unopened sour cream WAY (, way) past the date and do the same as you once it's opened. Between the pasteurization of the original milk and then innoculation with good microbes, the lower moisture content and the acidity, it's not a very hospitable environment for pathogens.