This is one of our family's favorite new things: Greek yogurt! It's like sour cream, but without all of the fat and calories.
Take plain, all natural yogurt, spoon your desired amount into a coffee-filter-lined colander or strainer and refrigerator for at least 8 hours. The whey drips out of the yogurt (watery liquid) and you are left with a thick, creamy, sour cream substitute. I had my Dearest try it. He said, "It's like sour cream, but so much better!"
We use it in place of sour cream for Mexican food and I will be trying it this weekend in a Spinach-Artichoke dip. Details to come!