Cook the pasta in plenty of boiling salted water for six to eight minutes. Meanwhile grate the cheese. Peel onions and cut them into fine rings. Wash parsley, dab dry and chop finely. Drain the pasta, let it drip off and put it with half of the cheese in four preheated pans.
Sprinkle with remaining cheese and season with pepper. Heat the fat in a pan and fry the onions until golden brown, turning them over. Pour onions with the frying fat over the cheese noodles. Serve sprinkled with parsley
Tip: You can also arrange the noodles in a large pan or bowl instead of in portions. The cheese should be melted by the dish's own heat before serving. You can also place the pans in a warm oven for a few minutes or cover the dish after filling it in, so that the cheese melts better.