Mix all ingredients together in a saucepan.
Bring the mixture to a boil, stirring with a heat safe utensil.
Boil continually to a temperature of about 275˚F. Using a candy thermometer to check the temperature is the best way to do this.
Being extremely careful, pour onto a large baking or cookie sheet.
Allow to cool completely, then break into pieces.
You can store the candy glass, layered between parchment or wax paper, in a container in your refrigerator for about 2 weeks.