Wash, peel and cut potatos in small cubes
Fine mince all vegetables and aromatics to make the soffritto
Put olive oil in the pot at moderate heat, then add the soffritto
When the soffritto is light colored, add the Parmigiano rind, potatoes, salt
Let all cook for a couple of minutes, then add cold water
When potatoes are cooked, add boiling water and put pasta
Let cook 13 minutes , adding water id needed, but must be creamy
During the cooking use a wooden spoon to stir the compost
Remove from the heat. Let it cool down for 5 minutes or more
Serve with a topping of grated parmigiano