- Pick through the beans and discard any debris. In a food processor, add garlic, onion, red bell pepper, green pepper and scallion. 
- Cook the chorizo in the oil in a large pot over medium heat, stirring occasionally, about 5 minutes. Using a slotted spoon, transfer the chorizo to a plate lined with paper towels. 
- In a large pot over medium heat, add the beans, water, broth and processed vegetables and carrots. Slightly cover and simmer for 1 ½ hours. 
- Add the chorizo,ground cumin, cilantro and potatoes. Simmer for 30 to 40 minutes more or until the beans are tender. 
- Season with salt and pepper. Serve with white rice and avocado on the side.