filet mignon with tarragon with back

1 1/2 tablespoons oil 1/4 cup shallot 1 cup beef broth 1/2 cup white wine 1/4 cup brandy 1/2 cup heavy cream 2 tablespoons butter 2 cloves garlic , chopped 1[...]

3 tablespoons butter 2 tablespoons olive oil 3/4 lb sliced mushrooms 1/2 chopped onion 2 cloves chopped garlic 1 teaspoon thyme salt and pepper 4 filet mignon[...]