In a heavy-bottomed pot, combine sugar, cream, apple cider reduction, Karo® Syrup, and butter. Cook at medium heat until your candy thermometer reaches 247 degrees (firm ball stage), stirring frequently.
If you do not have apple pie spice on hand-make your own with this recipe here.
The apple cider syrup can be made up to 1 week ahead of time if stored in an airtight container and refrigerated.
You can also purchase boiled cider (aka apple cider syrup) on Amazon or other kitchen stores.
If you do not have a thermometer, go here for other methods.