Preheat oven to 400°F. Prepare a cookie sheet with a silicone baking mat or parchment paper.

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

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

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

Add the vanilla extract and mix until well combined.

Add the dry ingredients and mix until combined.

In a small bowl, combine the remaining 3 tablespoons of sugar with the cinnamon.

Create balls of one tablespoon of cookie dough each.

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

Bake for 6-8 minutes.

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