Preheat the oven to 350 and line your baking tin with a silicone sheet, parchment paper or coat with baking spray.

Using a mixer and a large bowl, blend butter until creamy. Add the white and brown sugar to your bowl and mix well, next you will mix in the vanilla extract and egg until well combined.

Add the flour, baking soda, salt and cream of tartar to your bowl. Mix thoroughly and set aside.

In a small bowl, prepare the cinnamon mixture that you will use to coat your cookie dough by combining the ¼ c sugar with 2 tsp of cinnamon and mix well.

Next, using a tablespoon, scoop the cookie dough and form a ball using your hands. Roll the ball in the cinnamon sugar mixture and place onto your baking sheet. Repeat to desired amount.

Bake in the oven for 12 minutes. Allow to cool for 5 minutes and transfer to a cooling rack before serving.