Keep the broth aside; you will use it in making the peppercorn sauce. In a non-stick pan over medium heat, put in the crushed peppercorns and roast for one minute. Now add the cooking cream and stir.
Make a fillet steak that's already special even more special with Mary Berry's classic peppercorn sauce ... Worcestershire sauce, mustard, cream and peppercorns. Stir and bring to the boil ...