Chicken with mushrooms

1. Place chicken in a dish, add the wine, half the oil and half the vinegar, then scatter half the onion over it. Season, then cover and leave in a cool place for 8 to 12 hours, turning occasionally.
2. Pre-heat the oven to 160 degrees Celcius. Lift the chicken from dish and pat dry. Reserve the marinade.
3. Heat remaining oil in a large heavy based frying pan and brown the chicken pieces. Transfer to a plate and keep warm.
4. Add bacon and remaining onion to pan, cook until onion is soft. Stir in the mushrooms, cook for 3 minutes.
5. Stir in the anchovies and remaining vinegar, boil until reduced. Add marinade, cook for 2 minutes, and add stock and herbs.
6. Return chicken to casserole, cover and bake for about 2 hours.
7. Transfer chicken to a serving platter, boil the cooking juices to reduce. If using bouquet garni, remove. Pour sauce over chicken and serve warm over mashed potatoes.