Recipe from Kalyn Denny's blog, Kalyn's Kitchen, adapted by her from a recipe in Bon Appetit. Her blog centers on healthful, low-sugar recipes suitable for the South Beach Diet, but her recipes are great for anyone. My husband, not a huge fan of winter squashes, really enjoys this filling soup. We add a squeeze of lime juice at the table. I use packaged butternut squash chunks from Sam's and roast them about half an hour until soft and slightly caramelized. I also use strong homemade chicken or turkey stock instead of vegetable broth and 2 cups of cooked black beans instead of the canned ones.