Mexican Pulled Chicken (Three Ways)

Ingredients

• 1 yellow onion
• 2 tbsp olive oil
• 4 garlic cloves
• 2 tbsp chili powder
• 1 tbsp ground cumin
• 1 tsp chipotle powder
• 2 lbs boneless chicken thighs
• 1 1/2 tsp salt
• 1 tsp ground black pepper
• 14 oz. crushed tomatoes
• 6 oz. black beans (canned)
• 1 green bell pepper
• 1/2 cup chicken broth (optional)
• 3/4 cup sour cream
• 1/2 cup fresh cilantro