This is a pretty simple recipe made stove top. These are great to bring on a winter snow covered walk to keep warm. Do use an oven mitt to remove the chestnuts from the cookie sheet for they will burn ya!. Use dry, firm chestnuts; very soft and very hard chestnuts might be rotted. An overcooked chestnut is dried out and hard. Cover the chestnuts with a towel to keep them warm while serving. Try a little salt on your chestnuts. If the inner skins do not come off easily, the chestnut is either undercooked or overcooked Be sure to immobilize the chestnut with a dish towel, oven pad, oven mitt, so it will keep the chestnut from rolling when cutting. If you don't score them they will explode in the oven! The inner skin, called the pellicle, can be eaten or removed.