Beef Bourguignon

Name: Beef Bourguignon
Ingredients: 1 ⅕ kilograms Beef (for braising); 700 milliliters Red wine (such as passe-tout-grain); 100 milliliters Marc de Bourgogne; 1 Onion; 3 Shallots; 2 sprigs Thyme; 5 sprigs Parsley; 2 Bay leaves; leek (green parts); 2 tablespoons Sunflower oil; 20 crushed Peppercorns; 200 grams smoked Bacon (diced); 300 grams small Pearl onion (or substitute shallots); 2 tablespoons Butter; 2 Onions; 6 Carrots; 30 grams Pastry flour; 200 milliliters Beef stock; 1 tablespoon Sunflower oil; 1 teaspoon Salt; Pepper; 200 grams Button mushrooms