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 >>/46301/
> may be characterized by its high caloric nature, high carbohydrate level, or simple preparation
That immediately brings sweets to mind, some salty snacks also count but I can't readily remember them.
I've never thought of it in terms of sentimental value, but I kind of understand the concept. It makes me think of white cheese + guava "cheese" and paçoca (crumbly peanut candy).