Stewing beef; cubed -small amount Onions; chopped Leeks; chopped -Salt & Pepper -omit salt if using bouillon Oat groats; if you can't get -at health food store, try -pet store Stock; homemade, preferable Put meat (do not brown first) , onions, leeks, salt & pepper and groats in earthenware pot. Pour stock over top and stir. Put lid on. Put in medium-low oven for 16 hours. Groats will absorb stocks and juices and expand.