01 -
Using an electric mixer, blend the butter with granulated and brown sugars until the mixture is light and fluffy.
02 -
Add the egg and vanilla extract to the creamed butter mixture and beat until fully combined and smooth.
03 -
In a separate bowl, whisk together all-purpose flour, cornstarch, cream of tartar, baking powder, baking soda, and salt.
04 -
Gradually add the dry ingredients into the wet mixture and mix until no flour pockets remain, forming a soft dough.
05 -
Using a cookie scoop, portion the dough into uniformly sized balls. Roll each ball in the cinnamon sugar mixture until fully coated.
06 -
Place the coated dough balls onto a parchment-lined baking sheet, gently pressing them to approximately 1 inch thickness. Bake in a preheated oven at 350°F for 10–12 minutes or until edges are lightly golden.
07 -
While cookies cool, blend softened cream cheese, butter, vanilla, and powdered sugar until smooth and creamy.
08 -
Frost the cooled cookies generously with cream cheese frosting, sprinkle additional cinnamon sugar on top, and serve.