Oven Barbecued Beef Brisket

I got this from a Southern Living Cookbook that I have had for years.  I have made this for my family a lot and have also made it for our large extended family.  It has a great flavor and the BBQ sauce starts with a commercial sauce and you add the cooking liquid from the brisket.  Add some potato salad and baked beans and your set.

Ingredients

• 1 (4-5 pound) beef brisket
• 1/2 teaspoon celery salt
• 1/4 teaspoon garlic powder
• 1/2 teaspoon onion powder
• 2 tablespoons liquid smoke
• 1/3 cup Worcestershire sauce
• 3/4 cup commercial barbecue sauce

Instructions

1. Sprinkle beef with celery salt, garlic powder, and onion powder. Place in a shallow dish.
2. Pour liquid smoke and Worcestershire sauce over meat; cover with aluminum foil, and refrigerate 8 hours, turning once.
3. Cover and bake at 300 for 4 hours or until tender. Pour off liquid, reserving 1/2 cup, Combine barbecue sauce and 1/2 cup liquid, stirring well.
4. You can pour sauce over meat or I like to just serve it on the side.
5. If you pour it on before serving recipe suggests pouring over meat and then bake uncovered for an additional 30 minutes.
6. To serve, slice across grain into thin slices.

Notes

This needs to marinate for at least 8 hours.