I have never made toffee, until last night. A relative of my husbands called me to get an opinion and bounce off some ideas about a recipe he was trying that wasn't coming out to his liking. So we talked and went over some things, and he led me to a toffee recipe on cooking for engineers. So I went to it and BAM I fell in love - this may be my favorite cooking website because it goes into wonderful, readable technical information about cooking, which is right up my alley. Anyway, the recipe was easy, had plenty of pictures, and I made the toffee which turned out perfect. When I calculated the cost, the homemade is about $1 less (or more) per batch than buying the bag of pre crunched toffee bits, and I use those a lot for different recipes. BTW one batch and one bag are approximately equal weight.
Follow the link and enjoy some homemade toffee.