Cream the butter, then add in the 1 ½ cups sugar, baking soda and cream of tartar. For best results, use the paddle attachment on your stand mixer.
Add the eggs and vanilla and continue to mix until creamy.
Add the flour a little bit at a time, and continue mixing until combined, and dough has formed.
Cover mixing bowl, and chill for at least one hour.
Roll dough into roughly 1 ¼" balls. (Makes 24)
Mix together the ¼ cup sugar and cinnamon, then roll the dough balls in the mixture to coat and place them about 2" apart onto an ungreased cookie sheet or parchment/silpat lined baking sheet.
Bake at 375F for 10 to 13 minutes, until the bottoms are very lightly browned.
Notes
Calories are automatically generated. For best results calculate based on your exact ingredients.Makes 24 cookies