1. Preheat oven to 350 degrees.

2. In a medium-sized bowl, cream the butter, white sugar, and brown sugar with an electric mixer. Add the eggs one at a time, and then add the vanilla Beat for another 2-3 minutes.

3. In a smaller bowl, sift together the flour, cream of tartar, baking soda, and salt. Gradually fold in the flour mixture with the creamed mixture.

4. In a small serving bowl, combine the sugar and cinnamon.

5. Cover the bowl of dough with saran wrap and refrigerate for 30 minutes. (This will help you cookies be light and fluffy rather than crispy and flat.)

6. Remove dough from refrigerator and roll dough into 1 1/2 inch balls. Roll each ball into the cinnamon and sugar mix so that each one is completely coated.

7. Place cookies on a baking sheet. Sprinkle some more of the cinnamon and sugar mix over the dough balls.

8. Using the back of a spoon, press very lightly on each dough ball to flatten them slightly.

9. Bake for approximately 10 minutes (Check at around 8 minutes to ensure they don’t over-bake.) The edges should be golden.

10. Allow cookies to cool on a baking sheet for 10 minutes. Transfer to a cooling rack. Enjoy!