Cut the chicken breast into 1-inch bite-sized cubes and season evenly with sea salt and black pepper.
Heat the ghee in a large skillet or sauté pan over medium-high heat until melted and shimmering.
Add the chicken cubes to the skillet and brown for 3 to 4 minutes until golden on the outside, then remove chicken and set aside on a plate.
In the same skillet, add the diced yellow onion, minced garlic, and grated fresh ginger, sautéing for 3 minutes until the onion is translucent.
Stir in the garam masala and ground turmeric, cooking for 30 seconds to toast the spices and release their oils.
Pour in the tomato puree and full-fat coconut milk, whisking gently to combine the ingredients into a smooth, orange sauce.
Return the browned chicken and any accumulated juices to the skillet, reduce heat to low, and simmer for 5 to 7 minutes until the chicken is cooked through.
Place the warm cooked basmati rice in a bowl, ladle the chicken tikka masala over the top, and garnish with chopped fresh cilantro.