An easy vegetarian version of tortilla soup. I'm writing it here in its basic, mild form, but you can turn up the heat by adding tabasco, using a hot enchilada sauce, or throwing in some diced jalapeno or chipotle.
Cumin and fiery serrano chile infuse this simple soup as it cooks, and a dollop of sour cream provides a refreshing foil for the spicy flavors. For less heat, seed the chile first or use a milder pepper, such as jalape?
Serve this Mexican-inspired hummus with raw veggies or tortilla chips for dipping, or spread it on sandwiches and wraps, too. Make sure to drain the black beans well, otherwise the hummus may be too thin.