Preheat oven to 350F and line a sheet pan with parchment paper.
With a small bowl mix in the 2 tablespoons of sugar and 1 teaspoon of cinnamon and set aside until needed.
In a medium bowl cream softened butter, granulated sugar and brown sugar.
Add in vanilla extract and the egg yolk and mix until just combined.
Incorporate all the dry ingredients until the dough comes together scraping the bottom and sides of the bowl.
Scoop into 1 tablespoon balls and roll cookie dough balls into the cinnamon sugar mixture.
Space out the cookies leaving 2 inches in between each cookie on the prepared baking sheet.
Bake in middle rack for 8-10 minutes. At the 6-minute mark take the cookie out od the oven and bang it on the counter once and then allow them to bake for another 2 minutes or more until fully baked.
Take the cookies out of the oven and allow them to cool on a wire rack before enjoying.