Filet Mignon without vegetables caramel

3 pounds beef, filet mignon 1/2 pound each steak 2 sticks butter, unsalted 2 tablespoons olive oil 1 pound mushrooms assorted 4 tablespoons madeira wine 3[...]

12 ounces beef, filet mignon 4 steaks 2 tablespoons olive oil 2 tablespoons shallots finely chopped 1/4 cup madeira wine * 3/4 cups beef broth 3 teaspoons[...]