3-4 lbs. boneless brisket
1 tsp. salt
1-2 tsp. black pepper
2 tsp. celery seed or flakes
1 tbsp. Worcestershire sauce
2 tsp. liquid smoke
1 tsp. garlic salt
1 c. barbecue sauce

Mix together seasonings. Spread mixture over meat. Wrap in heavy foil. Refrigerate overnight. When ready to cook, add barbecue sauce. Close tightly and place in baking dish. Bake 4 hours at 300 degrees. Do not undercook. Open foil and cook last 1/4 hour. Baste with sauce. Slice across grain after cooling slightly.