Skinny Chicken Biryani

Name: Skinny Chicken Biryani
Ingredients: 1 cup plain fat-free yogurt; 1/2 teaspoon ground coriander; 1/2 teaspoon ground cumin; 1/4 teaspoon ground red pepper (cayenne); 2 tablespoons chopped fresh mint leaves; 1/2 cup Progresso™ reduced-sodium chicken broth, warmed; 1 pinch saffron threads, if desired; 1 tablespoon butter; 2 boneless skinless chicken breasts, cut into 3/4-inch cubes; 1 cup diced onion; 1/4 teaspoon salt; 1 teaspoon garam masala; 4 cups cooked basmati rice (or other white rice)