Return the chicken to the pan, pour in enough broth to cover the rice by the width of 2 fingers (about 1”), and bring to a boil. Cook over high heat until the level of liquid reaches the rice. Stir gently and reduce the heat to low. Cover the pan and cook until the liquid is absorbed, the chicken is cooked through, and the rice is tender but firm, about 20 minutes. Fluff the rice with a fork.