Chicken Tacos al Pastor in a Slow Cooker Recipe

Ingredients

• 3 chicken breasts (about 1.5 lbs), cut into large pieces
• 2 heads of garlic
• 1 chipotle pepper in adobo sauce
• 2 tablespoons white vinegar
• 1 teaspoon oregano
• 1 1/2 tablespoons lime juice
• 1/2 teaspoon salt
• 6 ounces fresh pineapple
• 1/2 teaspoon ancho chili powder
• 16 tortillas
• 2-3 slices of fresh pineapple, chopped
• 1/2 red onion, chopped
• Cilantro as desired, chopped
• Salsa as desired
• 3-4 limes