Follow these simple steps to create your delicious Authentic Indian Chicken Curry:

1. Marinate the Chicken: In a bowl, combine the chicken pieces with yogurt, turmeric powder, red chili powder, and salt. Mix well and let it marinate for at least 30 minutes (or up to 2 hours if time allows).

2. Heat the Oil: In a large pot or deep pan, heat the vegetable oil or ghee over medium heat.

3. Sauté Onions: Add the finely chopped onions and sauté until they turn golden brown. This step is crucial for building the base flavor.

4. Add Garlic and Ginger: Stir in the minced garlic, grated ginger, and green chilies. Cook for another 2-3 minutes until fragrant.

5. Incorporate Tomatoes and Spices: Add the chopped tomatoes, cumin seeds, coriander powder, and salt. Cook until the tomatoes soften and the oil separates.

6. Cook Chicken: Add the marinated chicken to the pot. Stir well to coat the chicken in the spice mixture. Cook for about 10 minutes.

7. Simmer: Cover the pot and let it simmer on low heat for about 20-25 minutes until the chicken is fully cooked and tender. Stir occasionally. If using heavy cream, add it just before serving for a richer texture.