Clean and wash the Brussels sprouts. Bring approx. 3/8 litres of water and 1 teaspoon of salt to the boil. Add the sprouts and stew covered for 15-20 minutes. Drain the sprouts and leave them in a hot pot. Roast pine nuts in a pan without fat, add butter at the end, let it foam up briefly and pour over the sprouts. Add parmesan and toss well. Season with nutmeg if necessary.