2. |
Add sweet potato and any desired spices at this time (I went for chili, cinnamon, cumin and chipotle powder - all are optional). Cook for 3 minutes, then add salsa, water and vegetable stock.
Bring mixture to a low boil on medium high heat and then lower heat to medium-low and simmer. Add black beans, cover and cook for at least 20 minutes more, preferably 30 - or until the sweet potatoes are fork tender and the soup and thickened. This soup is at its best when prepared the night before or allowed to rest for a few hours so the flavor marries with the vegetables and beans. |