Preheat oven to 400F. Line 2 large baking sheets with parchment paper
In a large mixing bowl, whisk together the flour, baking soda, cream of tartar, and salt
In your stand mixer, cream together the softened butter and sugar for 2-3 minutes
Scrape down the bowl and beat in the eggs and vanilla
Add in your dry ingredient mixture and mix until just combined
For the cinnamon-sugar mixture for rolling: In a separate small bowl, add the 2 Tbsp sugar with the 2 tsp cinnamon and combine well
Use a 1 Tbsp size cookie scoop to scoop out dough and roll it into a ball. Then roll each ball in the cinnamon sugar mixture until well coated and place them at least 2 inches apart on your prepared baking sheets
Bake for 8-10 minutes
Remove from oven and let sit on the baking sheets for 5 minutes before transferring to a cooling rack to cool completely