Crockpot Chicken Taco Chili Recipe

Crockpot Taco Chicken Chili Recipe:
2 (16oz) cans black beans, drained & rinsed 4 garlic cloves, minced 1 medium onion, diced 1-2 jalapeno peppers, seeded & finely diced 10oz frozen corn 1 (8oz) tomato sauce 1 (28oz) can diced tomatoes 3 tablespoons taco seasoning 2 boneless, skinless chicken breasts Cilantro (optional) Sour Cream (optional)
Instructions:
Combine the first 8 ingredients together in a slowcooker.  Top with the chicken breasts.  Cook on low for 6 hours, or high for 4 hours.  
Thirty minutes before serving, remove the chicken breasts & shred with 2 forks.  Stir the shredded chicken into the mixture in the crockpot.  Cook for 30 minutes.  Serve with cilantro and sour cream if desired.