Malabari Chicken Stew

INGREDIENTS

• 2 tablespoons extra-virgin olive oil
• 3 whole cardamom pods
• 2 bay leaves
• 3 whole cloves
• 1 (1 inch) piece cinnamon stick
• 2 onions, sliced
• 3 fresh green chile peppers, sliced
• 3 large potatoes, cubed
• 2 teaspoons ginger garlic paste
• 2 carrots, diced (optional)
• 2 teaspoons ground coriander
• 1 teaspoon ground black pepper
• 1/2 teaspoon ground turmeric
• 1/2 teaspoon salt, or to taste
• 1 1/2 (14 ounce) cans coconut milk
• 1/2 cup water
• 4 skinless, boneless chicken breast halves, cubed
• 2 tablespoons plain yogurt
• 1 tablespoon heavy cream (optional)
• 1 tomato, diced (optional)