Someone whom I interviewed before said that she tried to have a local sweet as a supplement at a local race. I thought that's a brilliant idea and since then I try to find as many local sweets as possible when I'm in a new town.
As you may know, Hiroshima's most famous sweet is momiji manju, but I'd rather recommend this instead.
Musashi's salty yokan (sweet bean jelly)
Its package says that a seller is Musashi, but no note about a producer. Anyway, its salty taste is just what you need while trail running. If you have a chance, please give a try.
Of course, you can enjoy it at your tea time at home.
Please let me know what's your favorite local sweet? And which course you run?