Chicken Tikka Masala

Ingredients

• 4 cloves garlic, grated
• 1 Tbsp. grated peeled fresh ginger (from a 1″ piece)
• 2 1/2 tsp. garam masala
• 2 tsp. ground coriander
• 2 tsp. ground turmeric
• 1 1/2 tsp. ground cumin
• 1/3 c. plus 1 tbsp. tomato paste, divided
• Kosher salt
• 1 c. whole-milk yogurt
• 2 lb. skinless, boneless chicken breasts
• 2 Tbsp. vegetable oil or ghee
• 1 yellow onion, finely chopped
• 1 to 3 fresh red chiles, seeded and finely chopped, or 1/4 to 1/2 tsp. crushed red pepper flakes
• 2 1/2 c. tomato puree
• 1 c. heavy cream
• 1/2 c. fresh cilantro leaves, finely chopped, plus more for serving