To create the incredible Slow Cooker Indian Butter Chicken, simply follow these steps:

1. Prepare Chicken: Cut the chicken thighs into bite-sized chunks and place them in the slow cooker.
2. Add Spices: Sprinkle the garam masala, cumin, turmeric, chili powder, garlic, and ginger over the chicken.
3. Incorporate Tomatoes: Pour the crushed tomatoes over the chicken and spices, and stir to combine.
4. Set Slow Cooker: Cover and cook on low for 4-6 hours or on high for 2-3 hours until the chicken is tender and cooked through.
5. Add Butter and Cream: When the chicken is ready, stir in the butter and heavy cream until everything is well combined.
6. Adjust Flavor: Taste and add sugar or salt as necessary to balance the flavors.
7. Garnish: Serve with chopped cilantro on top for freshness and color.
8. Pair: Serve hot over basmati rice or with naan bread on the side.

Following these simple steps will help you create a dish that is not only easy to prepare but also full of flavor and charm!