Add cream and simmer until flavors meld, about 2 minutes. Use a slotted spoon to remove potatoes from oil. (Save oil for another use.) Spoon sauce over steaks and serve with warm potatoes.

Make a fillet steak that's already special even more special with Mary Berry's classic peppercorn sauce. This make-ahead sauce is a lifesaver if you want to cook a special dinner without spending ...

Pour in the wine and stir in the chopped thyme leaves, then leave to simmer for 5-6 minutes, or until the liquid has thickened. Pour the mushroom and red wine sauce over the steaks and serve.