Step 1

Preheat the oven to 350 degrees F. Line two cookie sheets with parchment paper.

Step 2

In a large bowl, add in the butter and both sugars. Beat with a hand mixer on medium until light and fluffy, about 1 to 2 minutes.

Step 3

Add in the vanilla extract and eggs and mix just until the eggs are incorporated. Scrape down the sides of the bowl.

Step 4

In a separate bowl, add in the flour, cornstarch, baking powder, cream of tartar, and salt. Whisk until combined.

Step 5

Add the dry ingredients to the butter mixture and beat until the dough comes together and the flour is completely worked in.

Step 6

Using a 1 1/2 tablespoon cookie scoop, scoop the dough out into your palms and roll until a ball forms.

Step 7

In a small bowl, add in the sugar and cinnamon. Stir until blended.

Step 8

Add the rolled cookie dough balls into the topping until thoroughly coated.

Step 9

Place on the prepared cookie sheet about 2 inches apart.

Step 10

Place into the preheated oven and bake for 12 minutes or until the edges are golden brown.

Step 11

Remove from the oven and let the cookies cool on the cookie sheet for 5 minutes before transferring them to a wire rack or paper towel lined surface to cool completely.

Step 12

Store in an airtight container at room temperature.