Boil the milk and all the other ingredients up to and including the peperoncino. Add the potatoes, carrots and pasta. Stirring frequently, cook for 12 to 15 minutes without a lid until almost soft. Most of the liquid should be absorbed.
Just before serving, add the cheese and sprinkle with chives.
Tip: serve with fried cubes of bacon or roasted onion rings and apple purée.