Snickerdoodles Cookies

Easy and amazing tasting snickerdoodle cookies.
Ingredients:
3/4 cup of butter, softened
1 cup granulated sugar
1 egg
1 tsp baking soda
1/4 tsp salt
2 tsp cream of tartar
2 cups all-purpose flour
1 tsp vanilla extract
For the coating:
1/4 cup granulated sugar
2 tsp ground cinnamon
Bake at preheated 350F for 10-12 minutes, or until they are cracked on the top and just lose the glossy sheen.