Easy Chicken Curry with juice

1 large onion , diced 2 tablespoons olive oil 2 tablespoons curry powder 1/2 cup tomato juice 1/2 cup red wine 2 tablespoons chutney 1 lb chicken breast ,[...]

6 tablespoons butter 1/2 cup onion , chopped 6 tablespoons flour 3 teaspoons curry powder (or to taste) 1 1/2 teaspoons salt 1/4 teaspoon ground ginger 1 1/2[...]