I like this recipe because it is so simple. I love the rich, velvety flavor and texture of black beans, and this unfussy soup highlights those qualities. I like that it starts with dried beans, which have less salt and a nicer texture than canned, but does not require you to pre-soak them (although you can). Unlike many of the black bean recipes here, this one does not have ham, chicken broth, or tomatoes. If you leave off the sour cream or use something non-dairy, it will be vegan. I got this from the newspaper in Raleigh, North Carolina. It says it's from the Carolina Coffee Shop. I think the article said something about it being from an independent Carolina Coffee Shop in Chapel Hill, but there is a chain, one of which is in Raleigh, so I'm not sure. I like to put rice in mine (it's still a soup, not black beans and rice), but it's also good with cornbread.