1Roast the hazelnuts in a 400 degree oven until dark brown and roll them between your fingers to remove the skin.
2Freeze a large cookie sheet in a freezer for at least 10 minutes until cold. Then heat the butter on medium high heat until it melts. Incorporate the sugar, and start stirring constantly for 7 minutes. When the mixture first starts to bubble, and just starts to turn brown then add the nuts.
3Then immediately pour out onto the cookie sheet.Let cool, and then use a knife to pull it off the sheet and break it apart.