Barbecue Beef Sandwiches

3 pounds beef boneless chuck roast
1 cup barbecue sauce
1/2 cup apricot, orange or peach preserves
2 tablespoons red or green bell pepper, chopped
1 tablespoon Dijon mustard
2 teaspoons packed brown sugar
1 small onion, sliced
12 Kaiser or hamburger buns, split

Remove excess fat from beef. Cut beef into 4 pieces. Place beef in a 4- to 5-quart crock pot.

Mix remaining ingredients except buns; pour over beef. Cover and cook on LOW for 7 to 8 hours or until beef is tender.

Remove beef from crock pot. Cut beef into thin slices; stir back into sauce. Cover and cook on LOW for 20 to 30 minutes or until beef is hot. Fill buns with beef mixture.

Yields 12 sandwiches.