- 1 (3 lb.) boneless beef chuck roast
- 1 (16 oz.) bottle barbecue sauce
- 1 onion, sliced (optional)
Place the roast in the slow cooker. Pour the barbecue sauce on top and turn the roast to coat. Spread the onion on top. Cook on low for 8-10 hours. Shred the beef with two forks and mix with the sauce. Serve on toasted buns.