1. Preheat the broiler to high.2. In a large oven safe skillet, add 2 tablespoons butter, the chicken and onions. Set the skillet over medium-high heat. Add the garlic, ginger, chili powder, chipotle chili powder, turmeric, cumin, and season with salt and pepper. Cook until the chicken is seared and the spices are fragrant, 5-8 minutes. 3. Add 1 cup water, the sweet potatoes, tomatoes, and coconut milk. Stir to combine, bring the sauce to a simmer, and cook for 10-15 minutes until the sweet potato is soft and the sauce has thickened. Stir in 2 tablespoons of butter and half of the cilantro. If desired, broil for 3-5 minutes to crisp some of the chicken pieces. 4. Mix the remaining cilantro with the peanuts and lemon/lime juices and season with salt. Serve the chicken and sauce over bowls of rice with fresh naan. Top with peanuts and cilantro. Enjoy!