Recipe Requests - Killer Beef Brisket

I've had friends requesting "my" recipes. One of the most requested is the recipe for Killer Beef Brisket. This recipe I originally found in the "Stir Ups" cookbook produced by the Enid, OK Junior Welfare League with a few alterations from my kitchen. I've added the link for their cookbook if you would like your own copy. There are a lot of great recipes in the book.

Killer Beef Brisket

3-5 lbs. beef brisket (use double recipe for a whole brisket)
1/3 c. Real Lemon juice
1 c. beef broth or bouillon (I prefer Better than Beef Bouillon)
1/2 c. red wine (optional)

1/4 c. bottled liquid smoke
1 small bottle of soy sauce
1/4 tsp. garlic powder
1/4 tsp black pepper
1 Tbs. flour

Use a large or turkey size plastic cooking bag (depending on if you are cooking a whole or half brisket). Add flour and shake. Combine all ingredients. Place brisket in bag and pour mixture over meat in bag. Marinate overnight or up to 24 hours in refrigerator, turning occasionally to cover all sides of meat. Leave in bag. Make 5-6 slits in top of bag and cook 5-6 hours at 275 degrees. The marinade can be thickened after removing the cooked meat with 2 Tbs. of cornstarch and used as an au jus.

We prefer to serve it with rice and green beans.