Make the spice blend. Whisk together the curry powder, cumin, garam masala, coriander, turmeric, cinnamon, cardamom, and ground ginger and set aside.
For the curry
Sear the chicken. Season the chicken with 1-1/2 teaspoons sea salt and the ground black pepper. Melt the ghee in a large, heavy-bottomed skillet over medium-high heat. Add the chicken to the skillet and brown for 2 minutes. Flip and brown for an additional 2 minutes. Remove from the skillet and set aside.
Sauté the veggies. Add the onions to the skillet, season with 1/2 teaspoon sea salt, and saute until translucent. Add the garlic and saute until fragrant, about 15 seconds.
Cook the tomato puree. Add the tomato puree to the onions and garlic and cook for 2 minutes, stirring constantly.
Toast the spices. Add the spice blend and cook for 1 minute.
Make the sauce. Add the diced tomatoes and the chicken stock. Bring the contents of the skillet to a boil, reduce the heat to medium-low, and cook for 10 minutes.
Finish. Return the chicken to the skillet. Stir the contents to coat the chicken in sauce. Cover the skillet, reduce the heat to low, and cook for 40 minutes.
Serve. Garnish with chopped fresh cilantro and serve over rice with a side of naan.
Chicken: While you can use any part of the chicken, bone-in chicken imparts a deeper flavor. Thighs and drumsticks are particularly good for slow-cooked dishes like Rogan Josh.
Low and Slow: Rogan Josh benefits from slow cooking. Take your time to brown the chicken nicely, and let the spices cook out fully. The flavors develop better with time.
Garnish: Don't skip the garnish! Fresh cilantro or even a dollop of yogurt can add a fresh element to balance the spices in the dish.
Accompaniments: Chicken Rogan Josh pairs beautifully with steamed basmati rice or naan bread, which can be used to scoop up the rich, flavorful sauce.
Refrigerate Leftovers: Allow the curry to cool completely before sealing it in an airtight container and storing it in the refrigerator for up to 4 days.
Nutritional info is an estimate and provided as courtesy. Values may vary according to the ingredients and tools used. Please use your preferred nutritional calculator for more detailed info.