Slow Cooker Chicken Tortilla Soup

Bahan-bahan (6 porsi)

• 2 boneless skinless chicken breasts (about 1 pound)
• 4 cups good-quality chicken stock
• 2 (14-ounce) cans black beans, rinsed and drained
• 1 (14-ounce) can fire-roasted diced tomatoes, with juice
• 1 (15-ounce) can whole-kernel corn, drained
• 1 (4-ounce) can diced green chiles
• 4 cloves garlic, minced
• 1 -2 dried pasilla (negro) chile peppers*
• 1 white onion, peeled and diced
• 2 teaspoons ground cumin
• 1 teaspoon salt, or more/less to taste
• fresh lime wedges
• optional garnishes: chopped fresh cilantro, diced avocado, diced red onion, shredded cheese, sour cream, tortilla strips/chips