Does food evoke memory, or do you just think it does

I was just reading something about the movie Ratatouille and how food evokes memory, and I sort of had a knee jerk what a load of hooey moment, because frankly even back when I had a phenomenal memory food has never done anything to evoke it the way it is represented in that movie and really all popular culture, as in tasting something or smelling something and suddenly you are wafted back to your youth and your mother's kitchen etc.

This idea of course is probably related to Proust and À la recherche du temps perdu (Remembrance of Things Past) and its early scene of memory being sparked by a Madeleine. So I think the idea is pretty wide spread among people that food and smell works this way with memory, but does it really or do people just believe it does without really experiencing it?

For what it's worth the closest I've ever gotten with this is eating Camembert, sometimes when I have Camembert I think of the first times I had it in a small cafe in the black forest in Germany, but I don't have this memory from the taste, I have it because I look at the Camembert and I think that time, the taste does nothing for my memory (although perhaps if I tasted it blindfolded, I might think that is camembert I remember the first time I had that in Germany)