Separate legs and breasts of chickens.
Season with salt and pepper to taste and roll in flour.
Heat the butter in a large saucepan, add the chicken, mushrooms, onions, and salt pork.
Cover and cook slowly for 15 minutes.
Drain all the fat from saucepan, add the wine, gravy, and bouquet garni; cook 15 minutes longer.
Season to taste and serve.