In a bowl, combine the chicken with the marinade ingredients, including yogurt, ginger, cumin, cayenne, and garam masala. Let it marinate for at least an hour in the refrigerator to absorb all those lovely flavors.
While the chicken is marinating, prepare your baking pan by lining it with aluminum foil. This will make cleanup a breeze.
Once marinated, arrange the chicken on the prepared baking pan in a single layer, discarding any leftover marinade. Grill the chicken at 450°F (232°C) for 6 to 7 minutes, flipping halfway through to ensure even cooking.
As your chicken cooks, you can start preparing the tikka masala sauce. Heat a small saucepan over medium heat and melt the butter.
Next, add the minced garlic and jalapeño to the butter, sautéing until aromatic, which should take about 1 to 2 minutes.
Add the spice mix to the pan and sauté until fragrant, letting all those spices bloom in the heat.
Remove the sautéed jalapeño and discard it. Then, stir in the tomato sauce and allow it to simmer, adding salt to taste. Let the sauce thicken for about 2 minutes.
Once the chicken is done grilling, remove it from the pan and discard any juices. Add the grilled chicken to the sauce, mixing well to coat each piece.
Preheat your oven to 450°F (232°C). On a pizza pan, place the pizza crust and brush it lightly with olive oil to ensure a crispy texture.
Spread the tikka masala sauce evenly over the crust, then sprinkle with 1/2 cup of mozzarella cheese. Top with the marinated chicken, sliced onions, chopped cilantro, and the remaining cheese.
Lower the oven temperature to 425°F (218°C) and bake the pizza for 8 to 10 minutes, or until the cheese is bubbly and golden brown.
After baking, remove the pizza from the oven and let it cool for a minute before garnishing it with more chopped cilantro.
Your Chicken Tikka Masala Pizza is ready to be sliced and enjoyed!