Poulet Rôti Grand-mère

Name: Poulet Rôti Grand-mère (Grandmother’s Roast Chicken)
Prep time: 1 h 30 min
Total time: 1 h 30 min
Yield: Serves 4
Cuisine: French
Ingredients: 100 grams (3½ ounces) slab bacon; 100 grams (3½ ounces) onions, mirepoix; 125 grams (4⅓ ounces) button mushrooms, cleaned; 40 grams (3 tablespoons) unsalted butter; 70 grams (2½ ounces) pearl onions; Coarse salt and freshly ground pepper to taste, optional; 100 grams (3½ ounces) carrots, mirepoix; One 1.5-kilogram (3-pound, 5-ounce) roasting chicken, including gizzard, neck, and heart, prepared for cooking; Coarse salt and freshly ground pepper to taste; 30 grams (2 tablespoons) unsalted butter; 30 milliliters (2 tablespoons) vegetable oil; 500 milliliters (2 cups plus 2 tablespoons) Brown Veal Stock; 50 milliliters (3½ tablespoons) dry white wine; 400 grams (14 ounces) russet potatoes, peeled; 7 grams (1 teaspoon) sugar; 10 grams (2 tablespoons) finely chopped fresh flat-leaf parsley