Barbecue Beef for Sandwiches

Details

Ingredients

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