The New York Times (reg. req.) has a great article about halvah, the sweetened sesame seed confection common to healthfood stores and Middle Eastern markets.  It talks about the nostalgic effect halvah has on lots of people, and I'm one of them. 

In my hippie vegetarian youth, my sister and I weren't allowed "regular" candy like chocolate, etc.  I don't think I had a snickers until I was in High School.  What we had instead were things like carob bars, honey/sesame candy, and halvah.  Halvah was always one of my favorites.  It's made from ground seseme seeds (tahini) sweetened with sugar or honey and pressed into bars.  Great stuff.  The texture is fantastic.  It's grainy, sticky, melting...  Boy, now I'm jonesing.