Cut the chicken breast into bite-sized pieces and season evenly with sea salt and black pepper.
Heat the ghee in a large skillet over medium-high heat until melted and shimmering.
Add the chicken pieces to the skillet and sauté for 5-6 minutes until golden brown and cooked through, then remove and set aside.
In the same skillet, add the diced yellow onion, minced garlic, and grated ginger, sautéing for 3 minutes until fragrant and translucent.
Stir in the garam masala, turmeric, and cumin, toasting the spices for 30 seconds to release their natural oils.
Pour in the tomato puree and full-fat coconut milk, whisking gently to combine into a smooth, thick sauce.
Return the cooked chicken to the pan and simmer for 5 minutes over low heat to allow the flavors to meld together.
Steam or sauté the cauliflower rice in a separate pan for 3-4 minutes until tender and hot.
Plate the cauliflower rice, top with the creamy chicken tikka masala, and garnish with fresh chopped cilantro.