Pour cider into a medium saucepan and boil on high for about 20 minutes or until the cider is reduced to ⅓ cup (keep a glass or silicone measuring cup handy so you can pour it out and back in again if you need to). Set aside to cool.
Line an 8″ square pan with parchment paper, making sure to leave about 1″ hanging over the edges for easy removal. Spray with non-stick cooking spray and set aside. In a small bowl, combine ⅔ cup cream, cinnamon, nutmeg, allspice, and reduced apple cider. Set aside.
In a large, heavy saucepan, combine the sugar, ⅓ cup whipping cream and enough water to reach the ½ cup line on the measuring cup, and corn syrup. Cook over low heat until the sugar dissolves. Insert the candy thermometer and simmer until the syrup reaches 234℉.
Remove from heat and slowly whisk in the apple cider and cream mixture. Add the cubed butter and stir until the cream and butter are fully incorporated. Return the pan to heat and re-insert the candy thermometer. Cook over low heat, stirring frequently, until the temperature reaches 248℉.
Remove from heat and pour the caramel into the prepared pan. Let the mixture cool completely at room temperature or in the refrigerator.
Cut the caramels into ½″ squares and wrap each caramel in wax paper. Store in an airtight container or in the refrigerator for up to 2 weeks.
Notes
If you'd rather, you can use 1 teaspoon apple pie or pumpkin pie spice, plus 1/2 teaspoon cinnamon instead of the individual spices listed above.