3 lb rump roast, trimmed
1 tablespoon beef bouillon
3 tablespoon flour
1 1/2 teaspoon chili powder
15 oz tomato sauce
1 clove garlic -- chopped
1/2 cup onions -- chopped
1 teaspoon dry mustard
1/3 cup brown sugar -- packed
1 pkg. hamburger buns
2 tablespoon lemon juice

1. Rub flour into roast.

2. Place in bottom of crockpot and add remaining ingredients, except buns.

3. Cook on low for about 14-16 hours.

4. Serve over buns.

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