Barbecued Beef without crumbs

4 lbs boneless chuck roast 1 onion , chopped 2 tablespoons butter 3 tablespoons distilled white vinegar 12 ounces chili sauce 2 tablespoons brown sugar 1[...]

1/2 cup packed dark brown sugar 3 tablespoons minced canned chipotle chiles in adobo 1 tablespoon ground cumin 1 tablespoon sweet paprika salt pepper 1 (5 lb)[...]

4 lbs boneless chuck roast 1 onion , chopped 2 tablespoons butter 3 tablespoons distilled white vinegar 12 ounces chili sauce 2 tablespoons brown sugar 1[...]

1/2 cup packed dark brown sugar 3 tablespoons minced canned chipotle chiles in adobo 1 tablespoon ground cumin 1 tablespoon sweet paprika salt pepper 1 (5 lb)[...]