Chicken Korma

Name: Chicken Korma
Ingredients: 1 1/2 lb. boneless chicken thighs, cut into 1-inch chunks; Salt and freshly ground pepper, to taste; 3 Tbs. canola oil; 1 yellow onion, sliced; 2 large garlic cloves, minced; 2 Tbs. finely chopped fresh ginger; 1/2 cup tomato sauce; 2/3 cup chicken broth; 2/3 cup plain whole-milk yogurt; 2 tsp. garam masala; 3 Tbs. chopped fresh cilantro; Steamed basmati rice for serving (optional); 1/2 cup coarsely chopped roasted cashews