• Preheat the oven to 350 degrees F.

Sugar and Cinnamon Coating:

• In a small bowl, add sugar and cinnamon.  Mix together until combined and set aside.  

Cookie Dough - Dry Ingredients

• In a medium size bowl, add flour, cream of tartar, baking soda and salt.  Whisk together and set aside.

Cookie Dough - Butter, Sugar and Eggs

• In a large mixing bowl, add softened butter, sugar and eggs.  Beat with a mixer until creamy. 

Cookie Dough:

• To the butter and sugar mixture, slowly add the dry ingredients a little at a time while beating with a mixer on the lowest speed. 

Cookie Dough - Roll into Dough Balls

• Roll 1-1/2 teaspoons of dough into a ball for each cookie and set them on a large plate.

Cookie Dough Balls - Coat in Cinnamon and Sugar

• Roll each cookie dough ball in the sugar and cinnamon mixture to coat all sides.
• Place the dough balls on an ungreased cookie sheet leaving an even amount of empty space in between each one (the cookies will need to be baked in batches).

Bake:

• Bake in a preheated oven (at 350 degrees F.) until the bottoms of the cookies turn a golden color (about 11 minutes).

Cool:

• Let the cookies cool on a rack before serving.