Barbrcue Beef Sandwiches

Grrrrrgh!
Course : Sandwiches
From: HungryMonster.com
Serves: 10
 

Ingredients:

3 pounds beef rump roast
3 tablespoons flour
15 ounces tomato sauce
1/2 cup onions -- chopped
1/3 cup brown sugar -- packed
2 tablespoons lemon juice
1 tablespoon beef bouillon -- instant
1 1/2 teaspoons chili powder
1 clove garlic -- chopped fine
1 teaspoon dry mustard
1 package hamburger buns
 

Preparation:

Rub flour into roast. Place in bottom of crockpot and add remaining ingredients, except buns. Cook on LOW for abour 14 to 16 hours. Serve over buns.