What is the difference between butterscotch, caramel, and toffee?

I've always thought they were the same. Tonight I noticed a slight taste difference as compared to caramel when I had some "butterscotch" for the first time in a while. Now my assumptions have been thrown to the wind. Is butterscotch essentially caramel plus some liquor? Link 1: http://en.wikipedia.org/wiki/Candy Link 2: http://en.wikipedia.org/wiki/Buttersc... Please like and subscribe to the channel to get more videos! #sauce #dessert #toffee