Oven BBQ Brisket

1 5 lb Brisket, trimmed of most fat
1/4 cup brown sugar
1/2 cup ketchup
3 large onions, sliced thin
1 tablespoon Worcester Sauce
1 1/2 teaspoons liquid smoke

1/4 cup water
1/4 cup Corn Starch

Place all items large rectangle baking pan.

Cover with foil and bake at 325 for 4-5 hours or Crock Pot for 8 hours on low.

Strain sauce with a gravy strainer into a pan.

Add Corn Starch to warm water and mix well.

Add the above mixture to the sauce and heat until thick.

Pour mixture over and serve.