Mexican Chorizo and Corn Soup

Mexican Chorizo and Corn Soup 3/4 pound bulk fresh chorizo or spicy pork sausage 1 large onion, chopped 1 medium sweet red pepper, chopped 1 poblano pepper, seeded and chopped 3 garlic cloves, minced 1/3 cup all-purpose flour 1 teaspoon ground cumin 1/2 teaspoon salt 1/2 teaspoon pepper 2 cartons (32 ounces each) reduced-sodium chicken broth 1-1/2 pounds potatoes (about 4 medium), peeled and cut into 1/2-inch cubes 3 cups frozen corn (about 16 ounces) 1/2 cup sour cream Optional: Queso fresco and chopped fresh cilantro In a Dutch oven, cook and crumble chorizo over medium heat until cooked through, 4-6 minutes. Using a slotted spoon, remove chorizo to paper towels, reserving 2 tablespoons drippings in pan. In drippings, saute onion and red and poblano peppers over medium heat until tender, 8-10 minutes. Add garlic; cook and stir 1 minute. Stir in flour and seasonings until blended; cook and stir 3 minutes. Gradually stir in broth. Add potatoes and corn; bring to a boil. Reduce heat; simmer, uncovered, until potatoes are tender, 10-15 minutes. Stir in sour cream and chorizo; heat through. If desired, serve with cheese and cilantro.