See Sowest -20ºC or recipe. * Beef Brisket should be well trimmed and weigh about 4 to 5 lbs. Prepare the Spicy Texas Barbecue Sauce and set aside. Heat oven to 160ºC . Place beef brisket in ungreased rectangular baking dish, 13 X 9 X 5 cm. Pour sauce over beef. Cover and bake 2 hours. Turn beef over, cover and bake until tender, about 2 hours longer. Serve with warmed flour tortillas if desired.