Cut the beef into pieces of about 60–70 g (2–2½ oz) each, and put them in a casserole. Add the chopped onions, the large carrots chopped, the bouquet garni, garlic and crushed peppercorns. Pour over the two bottles of wine. Mix well with a wooden spoon and leave to marinate for 4 hours in a cool place (but not in the refrigerator