Beef with soup

3 lbs corned beef brisket , cubed 4 tablespoons olive oil 2 quarts beef broth salt & freshly ground black pepper, to taste 1 teaspoon dried oregano 1 teaspoon[...]

2 tablespoons flour 1 teaspoon salt 1/4 teaspoon pepper 1/2 teaspoon sugar 4 -5 lbs beef brisket 2 tablespoons butter or 2 tablespoons margarine 1 (2 ounce)[...]