Rolled Pasta With Radicchio, Pancetta, And Balsamic Vinegar

• 8 penne (dried)
• 6 green onions
• 4 shallots
• 2 pancetta
• 1 head radicchio
• 2,800 ml water to a in a po salt (boil)
• 45 ml olive oil
• 20 gr parmesan cheese (grated)
• 18 gr butter (unsalted)
• 8 gr salt