OK, not demi-glace in the true french culinary usage... call it a smoke reduction. Anyhow, I first posted about this here.
INGREDIENTS
<UL TYPE=SQUARE><LI> 1 large onion, chopped
<LI> 1 medium carrot, chopped
<LI> 1 celery stalk, chopped
<LI> 1 Bouquet garni (parsley, thyme, bay leaf, whole...