Creating Slow Cooker Butter Chicken can be a simple and rewarding process. Just follow these easy steps:

1. Prepare Chicken: Trim any excess fat from the chicken thighs and cut them into bite-sized pieces if desired.
2. Mix Vegetables and Spices: In a slow cooker, combine the chopped onion, garlic, ginger, garam masala, coriander, cumin, turmeric, and chili powder. Stir well.
3. Add Chicken: Place the chicken thighs into the slow cooker and coat them with the spice mixture.
4. Add Tomatoes: Pour in the crushed tomatoes, ensuring all the chicken is covered.
5. Add Butter: Cut the butter into small pieces and place them on top of the mixture in the slow cooker.
6. Cook: Cover the slow cooker and set it to cook on low for 4 to 6 hours or until the chicken is tender.
7. Stir in Coconut Milk: About 30 minutes before serving, stir in the coconut milk or heavy cream to create a rich sauce. Put the lid back on and let it cook.
8. Taste and Adjust: After cooking, taste the dish and add salt as needed to enhance the flavors.
9. Garnish: Before serving, sprinkle freshly chopped cilantro on top for a burst of color and freshness.

These steps will guide you to create a delicious and satisfying Slow Cooker Butter Chicken that is sure to impress!