Baltimore Pit Beef Sandwich

Directions

1. 1
   Combine ingredients for the rub in a bowl, and mix.
2. 2
   Sprinkle 3 to 4 tablespoons all over the beef, patting it in.
3. 3
   Place in a baking dish, and cover with plastic wrap.
4. 4
   You can cover the beef with the rub for a few hours, but for maximum flavor, leave it for 3 days in the refrigerator, turning once a day.
5. 5
   Prepare a hot grill.
6. 6
   Grill beef 30 to 40 minutes, or until outside is crusty and dark brown and internal temperature is about 120 degrees (for rare).
7. 7
   Turn beef often.
8. 8
   Transfer to a cutting board; let it rest 5 minutes.
9. 9
   Slice beef thinly across grain.
10. 10
    Pile beef high on a roll or bread slathered with horseradish sauce.
11. 11
    Garnish with onions, tomatoes and sliced lettuce.
12. 12
    Serve.