Clean, then boil Brussels sprouts for 5-6 minutes. I used 500 gram. Do not overcook Brussels sprouts. Overcooking releases the sulphur smelling glucosinolate: sinigrin.

In the meantime: fry 100 gram diced pancetta in a little oil for a couple of minutes. Add 20 gram butter & cooked chestnuts. When the butter has melted add 50 ml. Marsala and cook until the butter and Marsala form a thick sauce.

Mix the drained Brussels sprouts and a handful of parsley with the pancetta-Marsala-sauce and serve.