Preheat oven to 400°F.
Combine flour, cream of tartar, cinnamon, baking soda, and salt. Set aside.
With mixer on medium, combine sugar, butter and eggs. Stir in flour mixture.
Combine cinnamon and sugar for topping in a small bowl. Divide dough into 32 pieces and roll each piece into a ball. Roll balls in cinnamon-sugar mixture. Place 2 inches apart on ungreased cookie sheet.
Bake 8-10 minutes.
