Preheat oven to 350° F. Make the granulated sugar + cinnamon mixture by combining and set aside.
Add the apple cider In a medium sauce pan and bring to a boil. Allow the cider to simmer until the liquid has reduced down to ¼ of a cup.
While the apple cider is simmering, cream together the butter, granulated sugar and brown sugar with either a stand mixer or electric hand mixer. Mix for 2 minutes. The mixture should be light in color and fluffy in texture.
Scrape the sides of the bowl and add in the egg and vanilla. Mix until incorporated.
Add the flour, soda and salt to the bowl. Mix until about halfway incorporated.
Stop the mixer and add the ¼ cup of reduced apple cider to the bowl and mix until well combined. The dough will be soft.
Add the cubed apples, caramel pieces and white chocolate chips. Mix until distributed evenly.
Scoop the dough out into 1 ½ tbsp portions and roll each portion into a ball. Try your best to keep the caramel on the inside of the cookie dough, as the caramel will melt out if it is on the outside.
Roll each cookie dough ball into the cinnamon and sugar mixture and arrange on a parchment paper lined baking sheet.
Bake at 350° F for 9-11 minutes or until the cookies have spread, puffed up slightly and no longer look wet and glossy in the center of the cookie.
Allow the cookies to cool on the pan for 10 minutes before moving to a cooling rack. Enjoy!