Black Bean and Sweet Potato Chili

One more for my personal-blog-recipe file. . . . There are surely other recipes for this, but I love this one for its extra tang of cocoa and lime. Note:  The recipe is very black bean-heavy as written, so you could easily drop a can or double the sweet potatoes and red peppers to even out the proportions.

2 tablespoons extra-virgin olive oil
1 medium red onion, chopped
1 red pepper, chopped
4 cloves garlic, minced
2 teaspoons sea salt
1 large sweet potato, peeled and cut into 1/2-inch cubes
Zest and juice of 1 lime
1 28-can diced tomatoes
4 15-ounce cans black beans, rinsed and drained (or 6 cups freshly cooked)
1 jalapeno chile pepper, seeded and chopped
1 tablespoon cumin
1 tablespoon chili powder
1 teaspoon cocoa powder
1 lime, cut into wedges
1 cup chopped cilantro leaves, washed and dried

1. Warm the oil in a large pan over medium heat and add the onion, red pepper, garlic, and salt. Saute until soft, about 4 minutes.
2. Add the sweet potato and lime zest, and cook 10 to 15 minutes more, continuing to stir occasionally.
3. Add the tomatoes, black beans, jalapeno, lime juice, cumin, chili powder, and cocoa, bring to a simmer, cover, and cook for 10 minutes.
4. Serve over brown rice, if desired, with lime wedges and cilantro, or with corn bread, biscuits, or taco chips alongside.

Serves 6.