edges of the foil together but leaving a little opening for steam to escape.
place the pan in the oven and roast until the edges of the scored x mark start to curl up and the chestnuts are cooked through, about 30 to 45 minutes depending on the size of the chestnuts. remove and allow to cool for 5 minutes before handling.
the nuts will still be very hot, but the skin and shell will come off easier while the nuts are still warm so you need to work quickly. to keep from burning yourself on the hot nuts, use a clean rag to hold each one. pick one up from the 