Chestnut gravy is a luscious unconventional accompaniment to dishes. The sauce is thick and yet retains the subtle flavour of the chestnut. For me, chestnuts pervade the senses. I use fresh chestnuts. Admittedly, shelling the chestnuts is time consuming – so be warned if you decided to do this recipe that way – I feel you. Though, you could use pre-cooked chestnuts as a substitute if you don’t want to go through the hustle of shelling.