in a large pyrex baking dish, thoroughly mix all ingredients for sauce. put the brisket in the baking dish, and turn it over once to coat it with the sauce. sela the dish tightly with havy-duty aluminum foil.
bake at 275F DEGREES; for 5 to 7 hours (about 1 hour and 15 minutes per pound). remove from oven and allow to stand for 1 hour before slicing. slice across the grain, and serve with sauce. makes 8 to 10 servings.
note: this recipe works well with 5- to 6- pound brisket. be sure to use a pyrex baking dish or a very heavy metal pan. also, before you prepare the brisket, remove it from the refrigerator far enough ahead of time to allow it to come to room temperature.