Best Snickerdoodle Cookie Recipe

Preheat the oven to 375 degrees and line a baking sheet with parchment paper.
Combine the flour, baking soda, salt and cream of tartar in a large bowl. Whisk very well.
In a separate large bowl, cream together the butter, eggs, sugar and vanilla.
Add the dry ingredients to the wet ingredients and beat on medium speed until all ingredients are combined.
Mix 3 tablespoons of sugar with 1 tablespoon cinnamon in a small bowl.
Use a tablespoon to create rounded balls of cookie dough.
Thoroughly roll the balls of dough into the cinnamon mixture.
Space the cookie dough balls 2-3 inches apart on cooking sheet.
Bake for 8-10 minutes or until the edges are firm but the center is still a little soft.
Let rest on cookie sheet for 3-5 minutes after baking, then transfer to a wire cookie rack.