How to Make English Toffee
- Butter a large glass or metal cookie sheet that has sides.
- Place sugar, butter and water in a heavy saucepan.
Bring to a boil; stir constantly. Cook until mixture reaches 320 degrees Fahrenheit on a candy thermometer.
- Remove from heat. Stir in vanilla and mix well.
Pour onto cookie sheet.
- Sprinkle chocolate chips over hot candy. As chocolate softens, spread over candy, then sprinkle with finely chopped walnuts.
When cooled, crack into pieces.