Beef Tenderloin with Marsala without greens butter

1 1/2 lbs large shallots , halved lengthwise, peeled (about 24) 3 tablespoons olive oil 6 cups canned beef broth 1 1/2 cups tawny port 1 tablespoon tomato[...]

3/4 lb shallot , halved lengthwise and peeled 1 1/2 tablespoons olive oil salt and pepper 3 cups beef broth 3/4 cup port wine 1 1/2 teaspoons tomato paste 2[...]