Zesty Black Bean Dip Serve with white corn tortillas. 1 1/2 cups dried black beans, picked over and rinsed 8 cups water, plus 1/4 cup 2 cloves garlic 3 tablespoons vegetable oil 1 large green bell pepper, finely chopped, reserving about 1 teaspoon for garnish 1 small red onion, finely chopped, reserving about 1 teaspoon for garnish 2 teaspoons ground cumin 2 tablespoons cider vinegar Salt and pepper 1 plum tomato, finely chopped 1 small red chile, finely chopped Fresh cilantro leaves, for garnish Dollop sour cream, for garnish In a large saucepan, let the beans soak in enough cold water to cover for 1 hour and drain. Return the beans to the pan with the 8 cups of water and garlic. Bring the water to a boil, lower the heat, and simmer until tender, about 1 hour. Meanwhile, heat the oil in a large heavy skillet over moderate heat. Add the pepper, onion, and cumin and cook, stirring, until softened. Drain the beans and reserve 1/2 cup of them. Add the remaining beans to the pepper mixture...