Step 1

Preheat oven to 400°F. Prepare a cookie sheet (I recommend a darker cookie sheet) with a silicone baking mat or parchment paper.

Step 2

Combine the flour, cream of tartar, baking soda and salt in a medium sized bowl. Set aside.

Step 3

Add the butter and 1 1/2 cups of sugar to a large mixer bowl and cream until light in color and fluffy in texture, about 2-3 minutes.

Step 4

Add the eggs one at a time, mixing until combined after each. Scrape down the sides of the bowl, as needed.

Step 5

Add the vanilla extract and mix until well combined.

Step 6

Add the dry ingredients and mix until combined.

Step 7

Combine the remaining 3 tablespoons of sugar with the cinnamon in another small bowl.

Step 8

Create balls of one tablespoon of cookie dough each.

Step 9

Roll each ball of cookie dough in the cinnamon sugar mixture, then set on the prepared cookie sheet with about 2 inches between them.

Step 10

Bake for 6-8 minutes.

Step 11

Remove cookies from the oven and allow to sit for 2-3 minutes, then move to a cooling rack.

Step 12

Store cookies in an airtight container.