Place 3 pounds beef rump roast in a 6 quart crock pot. Season it with 1 teaspoon salt, 1 teaspoon pepper, ½ teaspoon onion powder, and ½ teaspoon garlic powder.
In a small bowl, whisk together 2 packets beef gravy mix (1 oz each), 1 tablespoon Worcestershire sauce, and 1 ½ cups beef broth.
Pour this mixture on top of the roast in the crock pot.
Cover and cook on low for 8-10 hours or on high for 4-5 hours until the beef is easily shreddable.
Shred the beef. And stir the gravy in the crock pot.
Serve the beef over 6 thick slices sourdough bread topped with the gravy from the crock pot.
Notes
You can make this recipe with a chuck roast as well.
Refrigerate the leftovers in an airtight container for up to 5 days.