Slow Cooker Crispy Chicken Carnitas

Bahan-bahan (8 porsi)

• 4 -5 pounds boneless skinless chicken breasts*
• 1 bottle beer (or chicken stock, if you do not like to cook with alcohol)
• 1 small white onion, diced
• 4 cloves garlic, peeled and minced
• 1 tablespoon chipotle powder (or 1 chipotle in adobo sauce, minced)
• 2 teaspoons cumin
• 1 teaspoon black pepper
• 1 teaspoon chili powder
• 1 1/2 teaspoons salt
• 2 -4 fresh limes