You were all so nice about not not giving me a hard time about burning the sugar at our last lesson - I really did mean to do that you know! - that i thought I'd find some easy recipes from the internet that show you how to make tofee without burning the sugar!
This one for Bonfire Toffee looks like it gives you a hard old fashioned toffee, like the kind you see glazed over toffee apples! Might be a bit hard to make as well though.
This one for English Toffee looks absolutely simple though! I think a Hershey bar is just plain chocolate which is easiest to melt in a microwave
A couple of good sites that use cooking as an introduction to chemistry are Kitchen Chemistry which not only shows how to make toffee, but how to turn it into honeycomb! Or there is this simple quizor perhaps you want to try this Canadian site
Interested in Chemistry? It's an interesting subject, finding out what the world around us is made up of and how we can use that knowledge, in fact last week from 18-24 July it was Australian National Chemistry Week!