Place onion and garlic in slow cooker; top with beef chunks. Sprinkle beef with salt and pepper; add water. Cover and cook on low 9 to 9 1/2 hours or until beef is tender.

Remove beef from cooking liquid; cool slightly.

Meanwhile, strain cooking liquid; skim off fat. Set aside.

Trim and discard excess fat from cooked beef. Shred beef with two forks.

Divide beef in half; add 1/4 cup reserved cooking liquid to each.

Use half to make barbecue sandwiches by combining the beef with 1 cup of your favorite barbecue sauce, reheating and serving on hamburger rolls or kaiser rolls.

Save the other half for another meal.