Step 1

Preheat oven to 375 F. Line baking sheets with parchment paper.

Step 2

In a medium bowl, combine flour, cream of tartar, baking soda, and salt. Set aside.

Step 3

In a large bowl, beat butter and sugar together.

Step 4

Add in the eggs, one at time, beating well after each addition.

Step 5

Add in the vanilla extract and mix until combined.

Step 6

Gradually add the flour mixture into the butter mixture, mixing until completely combined.

Step 7

In a small bowl, combine the cinnamon and sugar.

Step 8

Roll a tablespoon sized amount of dough into a ball and then roll the ball in the cinnamon sugar, making sure all sides are covered.

Step 9

Place the covered dough balls onto prepared baking sheets, about two inches apart.

Step 10

Bake for 8-10 minutes, until the bottoms of the cookies are browned and the edges are baked.

Step 11

Cool for 2-3 minutes on the baking sheet before transferring to wire rack to cool completely.

Step 12

Serve with your favorite hot cocoa!