So, about a week ago I picked up RECIPES FROM THE WORLD OF TOLKIEN by Rbt Tuesley Anderson (Thunder Bay Press, 2020). Tolkien cookbooks and Middle-earth recipes have been around for a long time; I was curious to see how this one handled the balancing act of what to leave out and what to put in, given that Tolkien includes some New World ingredients in his Middle-earth works. Despite the examples in LotR and H (potatoes, tomatoes), it's disconcerting to see Anderson's claim that lembas is a kind of cornbread. This he justifies as follows:
According to The Silmarillion, Lembas is first made by Yavanna,
the Valarian queen responsible for all things that grow on the earth,
using a special corn that grows in Aman. It is therefore likely that
Lembas would have been similar in texture and appearance to a
deliciously comforting cornbread (.54)
This they back up by listing a cup of cornmeal alongside a cup of flour in the list of ingredients (.55).
--It seems pretty obvious here that the folks who put this book together didn't know that in UK usage, which we have no reason to doubt Tolkien follows, 'corn' refers not to New World corn (maize) but is a generic term for grain in general (e.g. wheat).
As for the claim that maize grows in Valinor, my memory has a vague recollection of a line about 'corn-lands of Numenor' but a quick search of THE SILMARILLION failed to turn it up.
Cram, by the way, is mainly made of oats (.52).
'Dragon Eggs' (their version of deviled eggs) is described as having 'Chinese-inspired flavors' (.35), which seems to me rather to break the book's premise.
I think they're on much more solid ground when they ascribe Gollum a sushi dish ( .90-91), though I'm doubtful re. Smeagol's access to vinegar and wasabi.
So far as I cd tell, there are no ent-draughts nor any orcish cuisine, which is perhaps just as well.