How to Make It
In the bottom of a 5- to 6-quart slow cooker, combine the onion, potatoes, and carrots. Season the beef with 1 teaspoon salt and ¼ teaspoon pepper and place on top of the vegetables.
In a small bowl, whisk together the tomato paste, coffee, Worcestershire sauce, and brown sugar; pour over the beef and vegetables. Cover and cook on low until the beef and vegetables are tender, 8 to 9 hours.
Slice the beef across the grain and serve with the vegetables and sauce, sprinkled with the parsley. Serve with the bread, if desired.