Butterscotch Chips

Directions

1. 1
   In a large pot, combine brown sugar, corn syrup, water and salt. Cook over medium-low heat, stirring, until sugar is dissolved. Do not let mixture boil until sugar is completely dissolved.
2. 2
   Turn up the heat and continue cooking until liquid reaches the hard ball stage (250F); add butter and stir constantly to prevent scorching.
3. 3
   Cook until mixture will separate into hard but not brittle strands (270F) when tested in cold water; stir in the vanilla.
4. 4
   Pour candy in a thin sheet onto a greased slab. Mark into squares while still warm, creasing it deeply. Break into pieces as soon as candy is cool.