Showpiece dish of a whole fillet steak coated with pâté and…
Showpiece dish of a whole fillet steak coated with pâté and a duxelles of finely chopped mushrooms, wrapped in puff pastry, sometimes with Parma ham or crêpes, and baked until the crust turns golden while the meat stays pink. Its link with the famous duke who defeated Napoleon at Waterloo is popular but unproven. It became a fashionable dinner-party centrepiece in the 1960s and still features in television cooking contests.
The answer in 14 letters
One definition, one title to guess: that's WordLocus. This one comes from a past challenge.