Season the beef roast generously with seasoned salt and chipotle powder. Place roast in crock pot and pour Dr. Pepper and relish over top. Add Tabasco and Liquid Smoke.
Cook on low for 6-8 hours.
Remove any bones or excess fat and then shred the beef.
Taste for spice and add brown sugar to cut the heat if the meat is too spicy.
Keep warm till ready to eat. Serve on onion rolls or Hawaiian sub rolls.