1Microwave broth and tomatoes, in a microwave-safe container, on high power, until steamy hot, about 5 minutes.
2Meanwhile, heat oil in a Dutch oven or small soup kettle over medium-high heat. Add onions and peppers; sauté, until soft and golden brown, about 5 minutes. Add chili powder, cumin and oregano; sauté, until fragrant, a minute or so.
3Add beans and hominy, along with hot broth mixture. bring to a simmer, reduce heat to low, and simmer, partly covered, until vegetables are tender and flavors have blended, about 20 minutes.
4Stir in garlic, chocolate, and cilantro. Simmer a couple of minutes to blend flavors. Turn off heat, and let stand a few minutes, if there is time. Adjust seasonings, and serve.