An Assault on my Tastebuds

I have just had a rather odd gustatory experience. A friend of mine, who recently visited Japan, brought back an array of bizarrely flavoured KitKats for me; sweet potato, soy sauce, sweet tofu and wasabi. The soy sauce one was strangely pleasant, tasting a bit like maple syrup, but the others were, honestly, rather vile. I was just thinking what the English equivalents might be. Maybe baked beans or gravy or English mustard.