It is a classic French dish in which chicken is braised in red wine. In some parts of France, white wine and even champagne are used instead. The French word 'coq' implies that a rooster should be used, but any chicken can be used.
Prepare the chicken and other ingredients to be marinated and place in a large ceramic bowl. Add the wine, cover it with cling film, and marinate it for 24 in a fridge.
24 hours later, drain the marinade into a bowl using a colander. Leave to drain for 45 minutes. Retain the liquid for later use.
Prepare the garnish
Place the pearl onions and chicken stock in a pan and simmer until the onions are just cooked (about 20 minutes)
Separate the chicken from the vegetables/herbs and pat dry with kitchen towels. When dry, dust with plain flour. Season with salt and pepper.
Brown the chicken
Brown the chicken in a large casserole with the olive oil and butter. Remove to a bowl when cooked (5-7mins) and set aside.
Bring it together
Add the vegetables and herbs to the casserole pan and cook for 5 minutes on a moderate heat.
Add the browned chicken, reduced stock and marinade to the casserole, and cook for 20 mins.
Prepare and add the garnish
While the browned chicken, vegetables, herbs and marinade are cooking, fry the bacon lardons in a non-stick frying pan for 45 seconds. Add the button mushrooms and cook for a further four minutes. Add to the browned chicken when ready.