Place chicken, olive oil, garam masala, ¼ teaspoon turmeric, and salt in a bowl and toss to coat. Cover and marinate for four hours to overnight in the fridge.
Preheat oven to 350ºF. Heat ghee in a 1.5-quart saucepan over medium heat. Add onion, cinnamon stick, cardamon pods, and cumin seeds. Sauté until onions are translucent. Stir in garlic and ginger and cook for one minute.
Add rice, water, ¾ teaspoon turmeric, and salt to pan and bring to a simmer. Submerge chicken and cover.
Bake for 35-40 minutes or until water has been absorbed. Remove from oven, add peas and rest covered for 10 minutes before serving. Garnish with cilantro if desired.
Enjoy!