Chicken Tikka Masala

Name: Chicken Tikka Masala
Ingredients: 1 tbsp. extra-virgin olive oil; 1 lb. boneless skinless chicken breasts, cut into 1 cubes; 1 onion, chopped; 5 cloves garlic, minced; 1 tbsp. freshly minced ginger; 1/2 tsp. ground turmeric; 2 tsp. ground cumin; 2 tsp. paprika; 2 tsp. garam masala; 1 tsp. cayenne pepper; 1 (28-oz.) can crushed tomatoes; 1/2 c. plus 2 tbsp. heavy cream; Kosher salt; Freshly chopped cilantro, for garnish; Rice or naan, for serving