Chicken Tikka Masala

Name: Chicken Tikka Masala
Ingredients: 2 cups whole milk Greek yogurt; 3 tablespoons ancho chili powder; 2 teaspoons ground cumin; 2 teaspoons ground coriander; 2 teaspoons ground fennel; 2 teaspoons ground turmeric; 1 teaspoon ground cardamom; 1 teaspoon ground cloves; 1 teaspoon ground chile de arbol or cayenne powder; 1 teaspoon ground black pepper, plus more for seasoning; 2 cloves garlic, finely chopped; 1 tablespoon finely chopped fresh ginger; 6 boneless, skinless chicken thighs; Salt; 1/2 cup melted ghee