The nose knows.

Over the years there have been some wines that upon smelling Vinomaker has stated that, "this wine smells just like Necco Wafers".  Having no idea what a Necco Wafer smelled like, let alone tasted like, I would just humour him and nod like I knew exactly what he was talking about. The same way I suspect that he always humoured me when I would declare that some particular Cabernet Sauvignon "smells just like Parma Violets". (Parma Violets were one of my favourite sweets when I was little.)  The nose on our recent bottle of Barefoot Zinfandel just happened to elicit the, almost reflexive, Necco Wafer statement from Vinomaker. Unfortunately, having only ever tasted Necco Wafers once, I do not have the same olfactory memory to draw from, so thank you to Mr. Pellechia for validating Vinomaker's nose-nostalgia.
There aren't a lot of places in the San Francisco Bay Area that sell Necco Wafers, in fact I have never seen them for sale anywhere local.  I bought this packet of Necco Wafers in a petrol station in Utah on one of my trips there.  Necco Wafers are made by the New England Confectionery Company, (the oldest candy company in the United States and founded by Englishman, Oliver Chase), and a roll of Necco Wafers contains eight different flavours.  I'm thinking that it is a combination of five of those flavours, specifically clove, cinnamon, wintergreen, licorice and chocolate, that may be responsible for a cheap glass of red wine smelling like a candy/sweet.
Each one of us will have different descriptors for wine depending on our individual life experiences.  Apparently, Vinomaker and I associate certain aromas and flavours with candy/sweets from our respective childhoods. Considering that one's sense of smell is more closely linked with memory than any other sense, it is not surprising that certain smells can evoke particular memories.  I may not be exactly sure how that all works, I'm just glad that it does.