Lamb Korma

Name: Lamb Korma
Ingredients: 3/4 cup raw cashews; 2 1/4 cups water , divided; 2 pounds boneless lamb shoulder , cut into 1-inch pieces; 3/4 cup plain whole-milk yogurt; 2 teaspoons garam masala (such as Marhaba); 2 teaspoons ground coriander; 2 teaspoons kosher salt , divided; 1/2 teaspoon ground turmeric; 1/2 teaspoon Kashmiri chile powder; 5 tablespoons ghee , divided; 2 yellow onions , thinly sliced; 5 large garlic cloves , peeled and smashed; 1 small piece fresh ginger , peeled and chopped; 6 whole green cardamom pods; 3 whole cloves; 2 fresh or dried bay leaves; 1 cinnamon stick; 1 whole black cardamom pod; Chopped fresh cilantro , for garnish; Cooked basmati rice and naan, for serving