Serves: 2-3 dozen | Prep: 10 min | Cook: 10 min | Ready: 20 min
1 c. butter room, temperature
1/2 c. granulated sugar
3/4 c. light brown sugar
1 egg, room temperature
1 egg yolk, room temperature
2 tsp. vanilla
1 tsp. baking soda
1 tsp. cream of tartar
3/4 tsp. sea salt
1 tsp. ground cinnamon
2 3/4 c. flour
For the Cinnamon Sugar
1/4 c. Sugar
2 tsp. Cinnamon
Measure your flour correctly. Adding too much flour to the recipe is the most common mistake.
Optional, spoon some of the cinnamon sugar over each ball of cookie dough before placing on the baking sheet. You’ll get way more cinnamon than if you just rolled them.
Preheat oven to 375 degrees. Whisk the flour, baking soda, cream of tartar, salt and cinnamon together in a large bowl.
Cream the butter in the bowl of your stand mixer fitted with a paddle attachment.
Add the sugars and beat until light and fluffy. Add eggs one at a time while mixing on low. Scrape the bowl down and mix in the vanilla. Add the flour mixture to the batter and beat on low until just combined. Scrape the down down and fold in any remaining flour.
In a medium bowl mix sugar and cinnamon together for rolling. Use a medium ice cream scoop or tablespoon to portion out the cookie dough. You’ll want enough to roll balls that are 1.5-2 inches wide. Roll the dough in the palms of your clean hands then roll in cinnamon sugar.
Transfer to a parchment-lined baking sheet and bake at 375 degrees until puffed and just golden, about 10 minutes. Remove from oven and allow to cool on baking sheet for 5 minutes then transfer to a wire rack to cool completely.