This is one of our dad’s few specialties. He makes them once a year during chestnut season, when they’re readily available and cheap at the supermarkets.
These involve almost no work. Aside from cutting x’s on each chestnut, all you have to do is roast them on a cookie sheet in a 425 degree oven for about 25 minutes. That’s it! (Dad never claimed to be a gourmet chef.)