When I did the reduction I had 3 1/2 cups left so I took that, added a cup of veggie base, and 2 cups water and added celery, potato, carrot, onion, jalapeno and some stew meat. Let it cook for an hour or so. It was good. The broth had a nice flavor without being too strong. The jalapeno was initially really strong but by the time had dinner it was just right.
And now I have more soup to freeze.