Got 100%. Never knew that Manila folders and envelopes actually were named for Manila. But I looked it up today for the first time.
Quizzler, you honestly have nothing better to do?
Nevertheless, Ireland is a wonderful country with wonderful people.
The word french fries most likely came into being not because it was the place it was invented. But referring to the way of cutting things. A french cut (of the potatos) .French cut is the same as jullienne a term that is often used to slice vegetables in strips (the place of invention has been disputed)
So belgian does not seem to fit as the answer either. But as it is the current answer seems to be incorrect. (perhaps you were thinking of german chocolate cake? which ís "a thing" which by the way is not named for/after germany either but someone with the lastname "German" it was his recipe.)