Ingredients

• 2 teaspoons oil
• 1 onion, chopped
• 2 garlic cloves, minced
• 2 teaspoons ground coriander
• 2 teaspoons ground cumin
• 2 (14 ounce) cans black beans, rinsed and drained
• 1 (14 ounce) can diced tomatoes
• 1 teaspoon salt
• 1/4 teaspoon pepper
• 6 cups chicken broth
• 2 sweet potatoes, peeled and chopped
• sour cream
• lime wedge
• 1 cup corn kernel