Slow Cooker Chicken Tikka Masala

Add all ingredients except for sour cream, rice, cilantro and naan to slow cooker in the order they are listed above and cook on high for 3 hours, or on low for 6 hours. Remove lid and stir in sour cream. Add rice to large bowls and top with chicken mixture, then garnish with cilantro and serve with naan (if desired). Serve and enjoy!