Boiled beef - Typical recipe from South Tyrol

Ingredients

• 1 kg beef (shoulder)
• 1/2 onion
• 50 g celeriac bulb
• 1 carrot
• 1/2 leek
• 4 peppercorns
• salt
• 1 kg potatoe
• 1 onion (cut into rings)
• 50 ml red wine vinegar
• 20 ml olive oil