Review all recipe notes and instructions before beginning.
Preheat the oven to 350 degrees.
In the bowl of a stand mixer fitted with the paddle attachment, cream the butter and sugar on medium high for 2 minutes.
Add the egg, vanilla, and vinegar. Mix on medium until combined.
In this order, add the flour, salt, cinnamon, and baking soda. Mix on low or fold with a spatula until just combined.
On a small plate or shallow bowl, mix together the cinnamon and sugar.
Line a baking sheet with parchment paper. Roll the cookies into balls about 1.7 Tablespoons each. Roll each ball in the cinnamon sugar and place on the baking sheet lined with parchment paper (12 cookies per sheet)
Bake for 10-11 minutes. Let cool for 5 minutes on the baking sheet or until set.