While this is a very good soup, it's not Scotch Broth. Scotch Broth is and always has been made with Lamb, usually lamb neck bones or lamb shanks. The ingredients are those used in good Scotch...
Scotch Broth must be made with lamb. If you substitute lamb for the the beef, you will get a decent version of Scotch Broth. Until then, it is a version of Beef Barley.
I am not big on eating red meats like beef, so I replaced the beef with tofu, but besides that, this was a fantastic recipe. Definitely something that I'm going to continue making for the winter...
It was great! Made it just as printed except I added more peppercorns and a parsnip diced with the veggies... A very tasty hearty soup!