1. Cook pasta until al dente, according to package instructions.
2. In a frying pan, melt the butter, add the cream and mix everything thoroughly. Heat the sauce until it reduces a little and its consistency becomes slightly silky. Season with a pinch of salt and pepper and add the pasta. Mix everything thoroughly.
3. Remove from heat and add the fresh, finely chopped parsley. If desired, sprinkle with Parmesan cheese.