Beef Tenderloin with Marsala with shallots

1 1/2 lbs shallots , halved lengthwise and peeled (about large 24) 3 tablespoons olive oil 6 cups beef stock (can use low sodium canned broth) 1 1/2 cups[...]

1 1/2 lbs beef neck bone 4 large shallots , chopped 6 garlic cloves , coarsely chopped 2 large carrots , coarsely chopped 1 cup whiskey 1 tablespoon tomato[...]