In Belgium there are three stories about the etymology of French fries. And I'd like to know once and for all which one is correct.
The most popular story is probably the following, because it allows us to tell people French fries are actually not French at all, but Belgian instead:
During WWI the allied soldiers tasted French fries in Wallonia, because the people there speak French, they thought that they were in France instead, and thus called them French fries.
The second and third story are somewhat related and sound more logical to me. It either refers to:
1) Frenching, which is a method of cutting foods
2) French frying, which is a method of frying foods