Make rough over medium heat by browning flour and oil on stove until rough is a light brown color and smells like popcorn. Stir continuously to prevent burning.
Sauté in the same pot the onion, carrots, celery, cook 5 minutes or until onions are clear. Push vegetables to one side of the pan to brown beef in same pan.
Brown the beef by putting beef in pan for 2 minutes on each side. To not touch meat other than to flip after 2 minutes. Stir the vegetables and rough mixture to prevent burning as needed.
Add beef, rough vegetable mixture, potatoes, tomato paste, Worcestershire, herbs, canned tomatoes, date sugar, paprika, butter, jalapeño juice, broth, salt and pepper to the slow cooker.
Cover and simmer 2-4 hours on high until beef is very tender and potatoes are soft.
To thicken: cook more rough and mix with juice from slow cooker until well combined and no chunks are present. Then add to pot.
To thin out: add more broth
Serve with sour cream, French bread and/or saltine crackers