using a stand mixer or hand mixer with large bowl cream together the butter, granulated sugar and brown sugar until light and fluffy, about 3 minutes, scraping down the sides of the bowl as you go
beat in the egg, once combined scrape down the sides of the bowl again
with mixer on low, add in the vanilla and stir until combined
in a medium sized bowl whisk together the flour, baking soda, cream of tartar and salt
with mixer on low slow stir in flour mixture until just combined
cover dough and place in the fridge for at least 1 hour*
preheat oven to 350 F
place parchment paper on a baking sheet
roll 2 tsp of dough into a ball
combine apple cider drink mix, 1/2 cup sugar and cinnamon in a shallow bowl
roll dough balls in the cinnamon sugar until covered
place dough on baking sheet 2 inches apart
bake for 12 to 15 minutes or until edges of dough are slightly browned and center is set
allow to cool for 2 minutes on baking sheet then remove to cooling rack