No truffles (absolutely wasted on me as I don't have the scent receptors for them) or foie gras d'oie (or even canard) available locally so I had to use mushrooms and foie de cochon. Still have a lot left so either that or Beef Sroganoff for the rest of the meat.
Then again, I acquired ~10 lbs of short-dated pork back ribs (bit higher quality than generic supermarket - supposedly free from antibiotics and hormones) and a rack of lamb so have all that to chow down on.