Combine the flour, salt, and pepper, and coat the beef in the seasoned flour.

Melt the butter in a soup pot, and brown the beef. This will take about 5 minutes.

Add all of the remaining ingredients to the pot, and stir to scrape up any browned bits from the bottom of the pot.

Let the soup simmer and reduce for 1 hour and 15 minutes, stirring frequently. If necessary, add more salt and pepper to taste, and serve.