01 - Combine chicken with yogurt, lemon juice, turmeric, and salt in a large bowl. Mix thoroughly and marinate for 15 minutes up to 2 hours for deeper flavor penetration.
02 - Heat vegetable oil in a large skillet or Dutch oven over medium heat. Add chopped onions and sauté until golden and soft, approximately 5–7 minutes.
03 - Add minced ginger, garlic, and chopped jalapeños to the skillet. Cook for 2–3 minutes until fragrant, stirring constantly to prevent burning.
04 - Stir in diced tomatoes and cook for 4–5 minutes until softened and beginning to break down, forming a base for the sauce.
05 - Sprinkle coriander, cumin, garam masala, cinnamon, chili powder, and black pepper into the mixture. Stir well and cook for 1 minute to release essential oils.
06 - Add marinated chicken pieces to the pot. Cook, stirring frequently, until lightly browned on all sides, about 5 minutes.
07 - Pour in water or chicken broth, scraping up browned bits from the bottom. Bring to a gentle simmer, cover, and cook for 15–20 minutes until chicken is fully cooked and sauce has thickened.
08 - Taste and adjust salt or heat level as needed. Garnish with chopped fresh cilantro and serve hot with steamed rice or naan bread.