coq au vin recipe

**Ingredients:** - 4 slices bacon, diced - 1 whole chicken (about 4 pounds), cut into 8 pieces - Salt and pepper to taste - 1 cup pearl onions, peeled - 2 cups mushrooms, quartered - 4 cloves garlic, minced - 2 tablespoons tomato paste - 2 tablespoons all-purpose flour - 2 cups red wine (such as Burgundy or Pinot Noir) - 1 cup chicken broth - 1 bay leaf - 4 sprigs fresh thyme - 1 tablespoon butter (optional) - Fresh parsley, chopped (for garnish)