03Sprinkle flour over onions. Stir to combine, then stir in curry powder. Cook mixture over medium heat for one minute, stirring constantly.
04Pour in chicken broth. Stir to combine, then cook for five minutes. Add half and half, salt, pepper, and sugar, then cook for another five minutes.
05Add chicken and diced apple and cook for another 5 to 10 minutes. Turn off and allow to stand 5 or 10 minutes before serving. Taste for seasonings before serving.