Make a fillet steak that's already special even more special with Mary Berry's classic peppercorn sauce ... cook two fillet steaks and halve the sauce recipe for a special dinner for two.
Green peppercorns are gentler than black peppercorns, which tend to give a spicy edge to peppercorn sauce. If you want a creamer pepper sauce with your steak this is a great recipe to try.
Keep the broth aside; you will use it in making the peppercorn sauce ... Add the broth and cook till the sauce is thick. Add the beef and mix well.