Cut the chicken breast into bite-sized pieces and toss in a bowl with half of the garam masala, turmeric, cumin, and the Greek yogurt.
In a small pot, combine the basmati rice with 0.5 cups of water, bring to a boil, then cover and simmer on low for 15 minutes.
Heat the ghee in a large skillet over medium heat and sauté the diced onion, minced garlic, and ginger until the onion is translucent.
Stir in the remaining spices, sea salt, black pepper, and tomato puree, allowing the sauce to simmer for 5 minutes.
Add the marinated chicken to the skillet and cook for 8-10 minutes, stirring occasionally, until the chicken is cooked through.
Serve the chicken tikka masala over the fluffy basmati rice and garnish with freshly chopped cilantro.