If you wake up in the middle of the night (and can change rooms) turn on Martha Stewart. The other night she made a roux (white sauce) out of sour cream and flour. That was it. So I tried it on Christmas Eve, and it's so simple and tastes really good on hot vegetables. A bit more pizzazz. She said you can add it to hot broth (when making soup) and the sour cream won't separate.
I’ve checked the internet to see if this is listed, but didn’t see it. Really, it wasn’t a dream.