Clean, wash and strain the chicken well.
Add 2.2 lbs chicken on bones into the slow cooker pot.
Add the ingredients—¾ cup onion, 1 cup tomato ,1 tablespoon ginger garlic, 1 teaspoon green chilies, ¾ cup Greek yogurt, 1 tablespoon coriander powder, 2 teaspoons red chili powder, ¾ teaspoon turmeric powder, 1 teaspoon garam masala powder, 1½ teaspoon cumin powder, ½ teaspoon grated nutmeg, 1 teaspoon fennel seeds, 1½ inch cinnamon stick, 4 green cardamom, 4-5 cloves, 6-7 black peppercorns, 2 bay Leaves, 1½ teaspoon salt, 3 tablespoons oil, 2 tablespoons ghee— along with only ¼ cups of water. If you want the gravy to be thick, you do not need to add water at all.
Cover with lid and cook on high for 3.5 hours. I got perfectly cooked, intact chicken in 3 hours and a few minutes. The time may range from 3-4 hours on 'High' or 5-6 hours on 'Low'.
Once cooked, add 2 teaspoons lemon juice and mix.
Switch off and unplug the slow cooker. Place a steel bowl or foil piece over the chicken. Put live charcoal in bowl and pour ghee over it.
Immediately cover the cooker with lid and let it sit for 5 minutes.
After 5 minutes, discard the coal and garnish with chopped cilantro.
Serve this delicious crockpot chicken curry masala with roti, naan bread or rice along wtith some salad on side.