Chicken Tikka Masala

INGREDIENTS

• 6 garlic cloves, finely grated
• 4 teaspoons finely grated peeled ginger
• 4 teaspoons ground turmeric
• 2 teaspoons garam masala
• 2 teaspoons ground coriander
• 2 teaspoons ground cumin
• 1 1/2 cups whole-milk yogurt (not Greek)
• 1 tablespoon kosher salt
• 2 pounds skinless, boneless chicken breasts, halved lengthwise
• 3 tablespoons ghee (clarified butter) or vegetable oil
• 1 small onion, thinly sliced
• 1/4 cup tomato paste
• 6 cardamom pods, crushed
• 2 dried chiles de árbol or 1/2 teaspoon crushed red pepper flakes
• 1 28-ounce can whole peeled tomatoes
• 2 cups heavy cream
• 3/4 cup chopped fresh cilantro plus sprigs for garnish
• Steamed basmati rice (for serving)