Chicken Tikka Masala

INGREDIENTS

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