4 to 6 lb. brisket (or larger if desired)
2 tbsp. liquid smoke
2 tbsp. Worcestershire sauce
2 tsp. garlic salt
1 to 2 tsp. onion salt

Mix all ingredients well and rub into meat. Wrap tightly in heavy foil and refrigerate overnight. Unwrap. Place on grill for 1 to 1 1/2 hours, turning once. Remove from grill and wrap tightly in heavy duty foil.

Bake at 250°F for 4 to 6 hours. Serve with barbecue sauce.