Barbecue Beef for Sandwiches
Ingredients:
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4 pounds boneless chuck roast
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1 onion, chopped
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2 tablespoons butter
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3 tablespoons distilled white vinegar
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12 ounces chile sauce
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2 tablespoons brown sugar
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1 teaspoon mustard powder
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2 tablespoons Worcestershire sauce
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½ teaspoon freshly ground black pepper
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1 teaspoon salt
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⅛ teaspoon ground cayenne pepper
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3 cloves garlic, minced